Once small entity status is established in an application or patent, fees as a small entity may thereafter be paid in that application or patent without regard to a change in status until the issue fee is due or any maintenance fee is due. 37 CFR 1.27(g)(1). 37 CFR 1.27(g)(2) requires that notification of any change in status resulting in loss of entitlement to small entity status be filed in the application or patent prior to paying, or at the time of paying, the earliest of the issue fee or any maintenance fee due after the date on which status as a small entity is no longer appropriate. 37 CFR 1.27(g)(2) also requires that the notification of loss of entitlement to small entity status be in the form of a specific written assertion to that extent, rather than only payment of a non-small entity fee. For example, when paying the issue fee in an application that has previously been accorded small entity status and the required new determination of continued entitlement to small entity status reveals that status has been lost, applicant should not just simply pay the non-small entity issue fee or cross out the recitation of small entity status on Part B of the Notice of Allowance and Fee(s) Due (PTOL-85), but should (A) check the appropriate box on Part B of the PTOL-85 form to indicate that there has been a change in entity status and applicant is no longer claiming small entity status, and (B) pay the fee amount for a non-small entity.

37 CFR 1.27(h) indicates that any attempt to fraudulently establish status as a small entity or pay fees as a small entity will be considered as a fraud practiced or attempted on the Office. Applicants should not rely on any oral advice inadvertently given by an Office employee as to entitlement to small entity status. In addition, improperly and with intent to deceive establishing status as a small entity or paying fees as a small entity will be considered as a fraud practiced or attempted on the Office. Normally, the Office will not question a claim to status as a small entity.

37 CFR 1.27(h) indicates that any attempt to fraudulently establish status as a small entity or pay fees as a small entity will be considered as a fraud practiced or attempted on the Office. Applicants should not rely on any oral advice inadvertently given by an Office employee as to entitlement to small entity status. In addition, improperly and with intent to deceive establishing status as a small entity or paying fees as a small entity will be considered as a fraud practiced or attempted on the Office. Normally, the Office will not question a claim to status as a small entity.

37 CFR 1.27(h) indicates that any attempt to fraudulently establish status as a small entity or pay fees as a small entity will be considered as a fraud practiced or attempted on the Office. Applicants should not rely on any oral advice inadvertently given by an Office employee as to entitlement to small entity status. In addition, improperly and with intent to deceive establishing status as a small entity or paying fees as a small entity will be considered as a fraud practiced or attempted on the Office. Normally, the Office will not question a claim to status as a small entity.

37 CFR 1.27(h) indicates that any attempt to fraudulently establish status as a small entity or pay fees as a small entity will be considered as a fraud practiced or attempted on the Office. Applicants should not rely on any oral advice inadvertently given by an Office employee as to entitlement to small entity status. In addition, improperly and with intent to deceive establishing status as a small entity or paying fees as a small entity will be considered as a fraud practiced or attempted on the Office. Normally, the Office will not question a claim to status as a small entity.

(a) Refunds based on later establishment of small entity status. A refund pursuant to § 1.26, based on establishment of small entity status, of a portion of fees timely paid in full prior to establishing status as a small entity may only be obtained if an assertion under § 1.27(c) and a request for a refund of the excess amount are filed within three months of the date of the timely payment of the full fee. The three-month time period is not extendable under § 1.136. Status as a small entity is waived for any fee by the failure to establish the status prior to paying, at the time of paying, or within three months of the date of payment of, the full fee.

(a) Refunds based on later establishment of small entity status. A refund pursuant to § 1.26, based on establishment of small entity status, of a portion of fees timely paid in full prior to establishing status as a small entity may only be obtained if an assertion under § 1.27(c) and a request for a refund of the excess amount are filed within three months of the date of the timely payment of the full fee. The three-month time period is not extendable under § 1.136. Status as a small entity is waived for any fee by the failure to establish the status prior to paying, at the time of paying, or within three months of the date of payment of, the full fee.

Request for refunds, along with the assertions under 37 CFR 1.27(c), should be addressed to Mail Stop 16, Director of the U.S. Patent and Trademark Office, P.O. Box 1450, Alexandria, VA 22313-1450.

37 CFR 1.28(c)(1) requires that a deficiency paper be limited to one application or patent file. Where, for example, the same set of facts has caused errors in payment in more than one application and/or patent file, a separate paper must be submitted in each file for which an error is to be excused.

37 CFR 1.28(c)(2) requires that for each fee that was erroneously paid as a small entity, the deficiencies owed must be paid, and the payment of the deficiencies must be itemized. The deficiency owed for each previous fee erroneously paid as a small entity is the difference between the current fee amount (for other than a small entity) on the date the deficiency is paid in full and the amount of the previous erroneous (small entity) fee payment. Where there has been a fee decrease, the deficiency owed is equal to the amount (previously) paid in error, not the difference between the amount (previously) paid in error and the new lower non-small entity fee. 37 CFR 1.28(c)(2)(ii) requires the following itemizations: (A) the particular fee involved (e.g., basic filing fee, extension of time fee); (B) the small entity fee amount actually paid and when (for example, distinguishing between two one-month extension of time fees erroneously paid on two different dates); (C) the actual deficiency owed for each fee previously paid in error; and (D) the total deficiency owed (i.e., the sum of the individual deficiencies owed).

37 CFR 1.28(c)(2) requires that for each fee that was erroneously paid as a small entity, the deficiencies owed must be paid, and the payment of the deficiencies must be itemized. The deficiency owed for each previous fee erroneously paid as a small entity is the difference between the current fee amount (for other than a small entity) on the date the deficiency is paid in full and the amount of the previous erroneous (small entity) fee payment. Where there has been a fee decrease, the deficiency owed is equal to the amount (previously) paid in error, not the difference between the amount (previously) paid in error and the new lower non-small entity fee. 37 CFR 1.28(c)(2)(ii) requires the following itemizations: (A) the particular fee involved (e.g., basic filing fee, extension of time fee); (B) the small entity fee amount actually paid and when (for example, distinguishing between two one-month extension of time fees erroneously paid on two different dates); (C) the actual deficiency owed for each fee previously paid in error; and (D) the total deficiency owed (i.e., the sum of the individual deficiencies owed).

(a) Refunds based on later establishment of small entity status. A refund pursuant to § 1.26, based on establishment of small entity status, of a portion of fees timely paid in full prior to establishing status as a small entity may only be obtained if an assertion under § 1.27(c) and a request for a refund of the excess amount are filed within three months of the date of the timely payment of the full fee. The three-month time period is not extendable under § 1.136. Status as a small entity is waived for any fee by the failure to establish the status prior to paying, at the time of paying, or within three months of the date of payment of, the full fee.

(a) Refunds based on later establishment of small entity status. A refund pursuant to § 1.26, based on establishment of small entity status, of a portion of fees timely paid in full prior to establishing status as a small entity may only be obtained if an assertion under § 1.27(c) and a request for a refund of the excess amount are filed within three months of the date of the timely payment of the full fee. The three-month time period is not extendable under § 1.136. Status as a small entity is waived for any fee by the failure to establish the status prior to paying, at the time of paying, or within three months of the date of payment of, the full fee.

A maintenance fee improperly paid as a small entity where small entity status has been established but is no longer appropriate will be treated as a matter under 37 CFR 1.28(c) and will not be considered to involve expiration of the patent under 37 CFR 1.378. On the other hand, payment of a maintenance fee in the small entity amount where small entity status has not been established would result in the expiration of the patent under 37 CFR 1.378 unless the full maintenance fee due or a written assertion of small entity status is timely filed.

(b) Date of payment.
…
(2) The date when a deficiency payment is paid in full determines the amount of deficiency that is due, pursuant to paragraph (c) of this section.

37 CFR 1.28(a) provides a three-month time period for requesting a refund of a portion of a non-small entity fee based on later establishment of small entity status. The start date of the three-month refund period of 37 CFR 1.28(a) is the date the full fee has been paid. See 37 CFR 1.28(b)(1). Payment by authorization to charge a deposit account is treated for refund purposes the same as payments by other means (e.g., check or credit card authorizations), with each being treated as paid (for refund purposes) on the date of receipt in the Office as defined by 37 CFR 1.6. Thus, the date of receipt of an authorization to charge fees starts the three-month period for refunds under 37 CFR 1.28(a), not the date of debit of the fee to a deposit account. If a payment is mailed with a Certificate of Mailing under 37 CFR 1.8, the three month period for requesting a refund will start on the actual date of receipt of the payment in the Office, and not the Certificate of Mailing date. If a payment is filed by Priority Mail Express ® under 37 CFR 1.10, the date of deposit with the United States Postal Service (shown by the “date accepted” on the Priority Mail Express ® mailing label or other official USPS notation) is the date of receipt of the payment by the Office under 37 CFR 1.10(a) and the three month period for requesting a refund starts on the date shown by the “date accepted” on the Priority Mail Express ® mailing label rather than the date when the payment actually reaches the Office.

37 CFR 1.28(c) provides that if small entity status is established in good faith and the small entity fees are paid in good faith, and it is later discovered that such status as a small entity was established in error or through error the Office was not notified of a change of status, the error will be excused upon compliance with the separate submission and itemization requirements of 37 CFR 1.28(c)(1) and (c)(2), and the deficiency payment requirement of 37 CFR 1.28(c)(2). The deficiency amount owed under 37 CFR 1.28(c) is calculated using the date on which the deficiency was paid in full. See 37 CFR 1.28(b)(2).

37 CFR 1.28(a) provides a three-month time period for requesting a refund of a portion of a non-small entity fee based on later establishment of small entity status. The start date of the three-month refund period of 37 CFR 1.28(a) is the date the full fee has been paid. See 37 CFR 1.28(b)(1). Payment by authorization to charge a deposit account is treated for refund purposes the same as payments by other means (e.g., check or credit card authorizations), with each being treated as paid (for refund purposes) on the date of receipt in the Office as defined by 37 CFR 1.6. Thus, the date of receipt of an authorization to charge fees starts the three-month period for refunds under 37 CFR 1.28(a), not the date of debit of the fee to a deposit account. If a payment is mailed with a Certificate of Mailing under 37 CFR 1.8, the three month period for requesting a refund will start on the actual date of receipt of the payment in the Office, and not the Certificate of Mailing date. If a payment is filed by Priority Mail Express ® under 37 CFR 1.10, the date of deposit with the United States Postal Service (shown by the “date accepted” on the Priority Mail Express ® mailing label or other official USPS notation) is the date of receipt of the payment by the Office under 37 CFR 1.10(a) and the three month period for requesting a refund starts on the date shown by the “date accepted” on the Priority Mail Express ® mailing label rather than the date when the payment actually reaches the Office.

37 CFR 1.28(c)(2) requires that for each fee that was erroneously paid as a small entity, the deficiencies owed must be paid, and the payment of the deficiencies must be itemized. The deficiency owed for each previous fee erroneously paid as a small entity is the difference between the current fee amount (for other than a small entity) on the date the deficiency is paid in full and the amount of the previous erroneous (small entity) fee payment. Where there has been a fee decrease, the deficiency owed is equal to the amount (previously) paid in error, not the difference between the amount (previously) paid in error and the new lower non-small entity fee. 37 CFR 1.28(c)(2)(ii) requires the following itemizations: (A) the particular fee involved (e.g., basic filing fee, extension of time fee); (B) the small entity fee amount actually paid and when (for example, distinguishing between two one-month extension of time fees erroneously paid on two different dates); (C) the actual deficiency owed for each fee previously paid in error; and (D) the total deficiency owed (i.e., the sum of the individual deficiencies owed).

37 CFR 1.28(c)(2) requires that for each fee that was erroneously paid as a small entity, the deficiencies owed must be paid, and the payment of the deficiencies must be itemized. The deficiency owed for each previous fee erroneously paid as a small entity is the difference between the current fee amount (for other than a small entity) on the date the deficiency is paid in full and the amount of the previous erroneous (small entity) fee payment. Where there has been a fee decrease, the deficiency owed is equal to the amount (previously) paid in error, not the difference between the amount (previously) paid in error and the new lower non-small entity fee. 37 CFR 1.28(c)(2)(ii) requires the following itemizations: (A) the particular fee involved (e.g., basic filing fee, extension of time fee); (B) the small entity fee amount actually paid and when (for example, distinguishing between two one-month extension of time fees erroneously paid on two different dates); (C) the actual deficiency owed for each fee previously paid in error; and (D) the total deficiency owed (i.e., the sum of the individual deficiencies owed).

Once small entity status is established in an application or patent, fees as a small entity may thereafter be paid in that application or patent without regard to a change in status until the issue fee is due or any maintenance fee is due. 37 CFR 1.27(g)(1). 37 CFR 1.27(g)(2) requires that notification of any change in status resulting in loss of entitlement to small entity status be filed in the application or patent prior to paying, or at the time of paying, the earliest of the issue fee or any maintenance fee due after the date on which status as a small entity is no longer appropriate. 37 CFR 1.27(g)(2) also requires that the notification of loss of entitlement to small entity status be in the form of a specific written assertion to that extent, rather than only payment of a non-small entity fee. For example, when paying the issue fee in an application that has previously been accorded small entity status and the required new determination of continued entitlement to small entity status reveals that status has been lost, applicant should not just simply pay the non-small entity issue fee or cross out the recitation of small entity status on Part B of the Notice of Allowance and Fee(s) Due (PTOL-85), but should (A) check the appropriate box on Part B of the PTOL-85 form to indicate that there has been a change in entity status and applicant is no longer claiming small entity status, and (B) pay the fee amount for a non-small entity.

Once small entity status is established in an application or patent, fees as a small entity may thereafter be paid in that application or patent without regard to a change in status until the issue fee is due or any maintenance fee is due. 37 CFR 1.27(g)(1). 37 CFR 1.27(g)(2) requires that notification of any change in status resulting in loss of entitlement to small entity status be filed in the application or patent prior to paying, or at the time of paying, the earliest of the issue fee or any maintenance fee due after the date on which status as a small entity is no longer appropriate. 37 CFR 1.27(g)(2) also requires that the notification of loss of entitlement to small entity status be in the form of a specific written assertion to that extent, rather than only payment of a non-small entity fee. For example, when paying the issue fee in an application that has previously been accorded small entity status and the required new determination of continued entitlement to small entity status reveals that status has been lost, applicant should not just simply pay the non-small entity issue fee or cross out the recitation of small entity status on Part B of the Notice of Allowance and Fee(s) Due (PTOL-85), but should (A) check the appropriate box on Part B of the PTOL-85 form to indicate that there has been a change in entity status and applicant is no longer claiming small entity status, and (B) pay the fee amount for a non-small entity.

Once small entity status is established in an application or patent, fees as a small entity may thereafter be paid in that application or patent without regard to a change in status until the issue fee is due or any maintenance fee is due. 37 CFR 1.27(g)(1). 37 CFR 1.27(g)(2) requires that notification of any change in status resulting in loss of entitlement to small entity status be filed in the application or patent prior to paying, or at the time of paying, the earliest of the issue fee or any maintenance fee due after the date on which status as a small entity is no longer appropriate. 37 CFR 1.27(g)(2) also requires that the notification of loss of entitlement to small entity status be in the form of a specific written assertion to that extent, rather than only payment of a non-small entity fee. For example, when paying the issue fee in an application that has previously been accorded small entity status and the required new determination of continued entitlement to small entity status reveals that status has been lost, applicant should not just simply pay the non-small entity issue fee or cross out the recitation of small entity status on Part B of the Notice of Allowance and Fee(s) Due (PTOL-85), but should (A) check the appropriate box on Part B of the PTOL-85 form to indicate that there has been a change in entity status and applicant is no longer claiming small entity status, and (B) pay the fee amount for a non-small entity.

(b) Date of payment.

• (1) The three-month period for requesting a refund, pursuant to paragraph (a) of this section, starts on the date that a full fee has been paid;
• (2) The date when a deficiency payment is paid in full determines the amount of deficiency that is due, pursuant to paragraph (c) of this section.

37 CFR 1.28(a) provides a three-month time period for requesting a refund of a portion of a non-small entity fee based on later establishment of small entity status. The start date of the three-month refund period of 37 CFR 1.28(a) is the date the full fee has been paid. See 37 CFR 1.28(b)(1). Payment by authorization to charge a deposit account is treated for refund purposes the same as payments by other means (e.g., check or credit card authorizations), with each being treated as paid (for refund purposes) on the date of receipt in the Office as defined by 37 CFR 1.6. Thus, the date of receipt of an authorization to charge fees starts the three-month period for refunds under 37 CFR 1.28(a), not the date of debit of the fee to a deposit account. If a payment is mailed with a Certificate of Mailing under 37 CFR 1.8, the three month period for requesting a refund will start on the actual date of receipt of the payment in the Office, and not the Certificate of Mailing date. If a payment is filed by Priority Mail Express ® under 37 CFR 1.10, the date of deposit with the United States Postal Service (shown by the “date accepted” on the Priority Mail Express ® mailing label or other official USPS notation) is the date of receipt of the payment by the Office under 37 CFR 1.10(a) and the three month period for requesting a refund starts on the date shown by the “date accepted” on the Priority Mail Express ® mailing label rather than the date when the payment actually reaches the Office.

37 CFR 1.28(a) provides a three-month time period for requesting a refund of a portion of a non-small entity fee based on later establishment of small entity status. The start date of the three-month refund period of 37 CFR 1.28(a) is the date the full fee has been paid. See 37 CFR 1.28(b)(1). Payment by authorization to charge a deposit account is treated for refund purposes the same as payments by other means (e.g., check or credit card authorizations), with each being treated as paid (for refund purposes) on the date of receipt in the Office as defined by 37 CFR 1.6. Thus, the date of receipt of an authorization to charge fees starts the three-month period for refunds under 37 CFR 1.28(a), not the date of debit of the fee to a deposit account. If a payment is mailed with a Certificate of Mailing under 37 CFR 1.8, the three month period for requesting a refund will start on the actual date of receipt of the payment in the Office, and not the Certificate of Mailing date. If a payment is filed by Priority Mail Express ® under 37 CFR 1.10, the date of deposit with the United States Postal Service (shown by the “date accepted” on the Priority Mail Express ® mailing label or other official USPS notation) is the date of receipt of the payment by the Office under 37 CFR 1.10(a) and the three month period for requesting a refund starts on the date shown by the “date accepted” on the Priority Mail Express ® mailing label rather than the date when the payment actually reaches the Office.

37 CFR 1.28(a) provides a three-month time period for requesting a refund of a portion of a non-small entity fee based on later establishment of small entity status. The start date of the three-month refund period of 37 CFR 1.28(a) is the date the full fee has been paid. See 37 CFR 1.28(b)(1). Payment by authorization to charge a deposit account is treated for refund purposes the same as payments by other means (e.g., check or credit card authorizations), with each being treated as paid (for refund purposes) on the date of receipt in the Office as defined by 37 CFR 1.6. Thus, the date of receipt of an authorization to charge fees starts the three-month period for refunds under 37 CFR 1.28(a), not the date of debit of the fee to a deposit account. If a payment is mailed with a Certificate of Mailing under 37 CFR 1.8, the three month period for requesting a refund will start on the actual date of receipt of the payment in the Office, and not the Certificate of Mailing date. If a payment is filed by Priority Mail Express ® under 37 CFR 1.10, the date of deposit with the United States Postal Service (shown by the “date accepted” on the Priority Mail Express ® mailing label or other official USPS notation) is the date of receipt of the payment by the Office under 37 CFR 1.10(a) and the three month period for requesting a refund starts on the date shown by the “date accepted” on the Priority Mail Express ® mailing label rather than the date when the payment actually reaches the Office.

37 CFR 1.28(c) provides that if small entity status is established in good faith and the small entity fees are paid in good faith, and it is later discovered that such status as a small entity was established in error or through error the Office was not notified of a change of status, the error will be excused upon compliance with the separate submission and itemization requirements of 37 CFR 1.28(c)(1) and (c)(2), and the deficiency payment requirement of 37 CFR 1.28(c)(2). The deficiency amount owed under 37 CFR 1.28(c) is calculated using the date on which the deficiency was paid in full. See 37 CFR 1.28(b)(2).

37 CFR 1.28(c)(1) requires that a deficiency paper be limited to one application or patent file. Where, for example, the same set of facts has caused errors in payment in more than one application and/or patent file, a separate paper must be submitted in each file for which an error is to be excused.

Under 37 CFR 1.28(c)(3), the failure to comply with the requirements of 37 CFR 1.28(c)(1) and (c)(2) permits the Office at its option to either charge a processing fee (37 CFR 1.17(i)) to process the paper or require compliance within a one-month non-extendable time period to avoid return of the paper.

Any paper submitted under 37 CFR 1.28(c) is treated as a notification of loss of small entity status under 37 CFR 1.27(g)(2). See 37 CFR 1.28(d).

A maintenance fee improperly paid as a small entity where small entity status has been established but is no longer appropriate will be treated as a matter under 37 CFR 1.28(c) and will not be considered to involve expiration of the patent under 37 CFR 1.378. On the other hand, payment of a maintenance fee in the small entity amount where small entity status has not been established would result in the expiration of the patent under 37 CFR 1.378 unless the full maintenance fee due or a written assertion of small entity status is timely filed.