MPEP § 2530 — Special Acceptance of Maintenance Fee Payments Containing Informalities (Annotated Rules)

§2530 Special Acceptance of Maintenance Fee Payments Containing Informalities

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 2530, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Special Acceptance of Maintenance Fee Payments Containing Informalities

This section addresses Special Acceptance of Maintenance Fee Payments Containing Informalities. Primary authority: 37 CFR 1.377), 37 CFR 1.378(a), and 37 CFR 1.377. Contains: 1 requirement, 7 permissions, and 1 other statement.

Key Rules

Topic

Post-Issuance & Maintenance Fees

4 rules
StatutoryPermittedAlways
[mpep-2530-9c8517efe81bc019f4c06b3e]
Telephone and Mailing Address Required for Maintenance Fee Submissions
Note:
A maintenance fee submission by mail or facsimile must include both a telephone number and a mailing address to allow the Office to contact the submitter for confirmation if the fee is sufficient.

It is strongly recommended that a maintenance fee submission by mail or facsimile include both a telephone number and a mailing address for the fee submitter because, provided the fee is sufficient, the Office may attempt to contact the submitter by telephone and/or by mail to confirm the patent to which the fee is to be applied. If the Office specially accepts a payment under any one of scenarios I – III below, a Notice of Special Acceptance of Patent Maintenance Fee (PTO-2143) will be mailed to the submitter that identifies the patent number and application number to which the maintenance fee was applied and requests the submitter to verify that the payment was applied as intended. If the payment was not applied to the intended patent, a petition (such as a petition under 37 CFR 1.377) must be filed. If the petition is not filed within 2 months of the date of the notice (PTO-2143), the petition may be dismissed as untimely, and relief may have to be pursued under 37 CFR 1.378(a) – (c).

Jump to MPEP Source · 37 CFR 1.377)Post-Issuance & Maintenance FeesMaintenance Fee AmountsFee Requirements
StatutoryPermittedAlways
[mpep-2530-d100ea07c1687b96c9ddc0c1]
Payment May Apply to Correct Patent or Be Returned
Note:
The Office may apply a maintenance fee payment to the correct patent identified by its number or return it if the application number is not specified.

If a maintenance fee payment identifies only the patent number (i.e., does not identify the application number for the patent on which the maintenance fee is being paid), the Office may apply the payment to the patent identified by the patent number in the payment or may return the payment. See 37 CFR 1.366(c).

Jump to MPEP Source · 37 CFR 1.366(c)Post-Issuance & Maintenance FeesMaintenance Fee AmountsFee Requirements
StatutoryPermittedAlways
[mpep-2530-a3bf90a41d1af9be689bc6d1]
Office May Return Payment If Information Inconsistent
Note:
The Office may return a payment if it is sufficient and timely to pay the maintenance fee but additional information on the submission does not match the patent identified by the patent number.

When a patent number and an application number are both supplied, but they do not correspond to the same patent, the Office will generally apply the payment to the patent identified by the patent number, if possible. Even if the payment is sufficient and timely to pay the maintenance fee due in the patent identified by the patent number, the Office may return the payment if additional information on the payment submission is inconsistent with the patent identified by the patent number. The Office may even apply the payment to the patent identified by the application number if the additional information corroborates that patent. Such may be the case, for example, where the fee submitter is the addressee named in the correspondence address or fee address of the patent identified by the application number.

Jump to MPEP SourcePost-Issuance & Maintenance FeesMaintenance Fee AmountsFee Requirements
StatutoryPermittedAlways
[mpep-2530-9e1622ed74b621a9f0f27a47]
Payment May Apply to Patent or Be Returned
Note:
If a maintenance fee is due and the payment submitted is sufficient, the Office may apply it to the patent if additional corroborating information is present, or return it otherwise.

If a maintenance fee is due on the patent identified by the application number and the payment submitted is sufficient, the Office may apply the payment to the patent (provided additional corroborating information is present) or may return the payment.

Jump to MPEP SourcePost-Issuance & Maintenance FeesMaintenance Fee AmountsFee Requirements
Topic

Identifying the Application

3 rules
StatutoryInformativeAlways
[mpep-2530-fafbda398e217bffa7a3536e]
Payment Generally Applied to Patent Numbered Item
Note:
When a payment is made with both patent and application numbers, it will typically be applied to the patent identified by the number if possible.

When a patent number and an application number are both supplied, but they do not correspond to the same patent, the Office will generally apply the payment to the patent identified by the patent number, if possible. Even if the payment is sufficient and timely to pay the maintenance fee due in the patent identified by the patent number, the Office may return the payment if additional information on the payment submission is inconsistent with the patent identified by the patent number. The Office may even apply the payment to the patent identified by the application number if the additional information corroborates that patent. Such may be the case, for example, where the fee submitter is the addressee named in the correspondence address or fee address of the patent identified by the application number.

Jump to MPEP SourceIdentifying the ApplicationFee RequirementsMaintenance Fee Payment
StatutoryPermittedAlways
[mpep-2530-582e2dcbb1f69596c994919d]
Payment Can Be Applied to Application Numbered Patent
Note:
The Office may apply a payment to the patent identified by an application number if additional information corroborates that patent.

When a patent number and an application number are both supplied, but they do not correspond to the same patent, the Office will generally apply the payment to the patent identified by the patent number, if possible. Even if the payment is sufficient and timely to pay the maintenance fee due in the patent identified by the patent number, the Office may return the payment if additional information on the payment submission is inconsistent with the patent identified by the patent number. The Office may even apply the payment to the patent identified by the application number if the additional information corroborates that patent. Such may be the case, for example, where the fee submitter is the addressee named in the correspondence address or fee address of the patent identified by the application number.

Jump to MPEP SourceIdentifying the ApplicationFee RequirementsMaintenance Fee Payment
StatutoryPermittedAlways
[mpep-2530-22a464fbbf325d58799a79af]
Fee Submitter Must Match Application Address
Note:
The fee submitter must be the addressee named in the correspondence address or fee address of the patent identified by the application number.

When a patent number and an application number are both supplied, but they do not correspond to the same patent, the Office will generally apply the payment to the patent identified by the patent number, if possible. Even if the payment is sufficient and timely to pay the maintenance fee due in the patent identified by the patent number, the Office may return the payment if additional information on the payment submission is inconsistent with the patent identified by the patent number. The Office may even apply the payment to the patent identified by the application number if the additional information corroborates that patent. Such may be the case, for example, where the fee submitter is the addressee named in the correspondence address or fee address of the patent identified by the application number.

Jump to MPEP SourceIdentifying the ApplicationCorrespondence Address RequirementsCorrespondence with the Office
Topic

Petition to Reinstate

2 rules
StatutoryRequiredAlways
[mpep-2530-ff443fe323c750046765f5fb]
Office May Send Special Acceptance Notice for Maintenance Fees
Note:
The Office may send a notice to verify if a maintenance fee was applied correctly, and a petition must be filed within two months if the payment was not applied as intended.

It is strongly recommended that a maintenance fee submission by mail or facsimile include both a telephone number and a mailing address for the fee submitter because, provided the fee is sufficient, the Office may attempt to contact the submitter by telephone and/or by mail to confirm the patent to which the fee is to be applied. If the Office specially accepts a payment under any one of scenarios I – III below, a Notice of Special Acceptance of Patent Maintenance Fee (PTO-2143) will be mailed to the submitter that identifies the patent number and application number to which the maintenance fee was applied and requests the submitter to verify that the payment was applied as intended. If the payment was not applied to the intended patent, a petition (such as a petition under 37 CFR 1.377) must be filed. If the petition is not filed within 2 months of the date of the notice (PTO-2143), the petition may be dismissed as untimely, and relief may have to be pursued under 37 CFR 1.378(a) – (c).

Jump to MPEP Source · 37 CFR 1.377)Petition to ReinstatePost-Issuance & Maintenance FeesMaintenance Fee Amounts
StatutoryPermittedAlways
[mpep-2530-9fd54fe6c21be478078596ce]
Petition Must Be Filed Within 2 Months of PTO-2143
Note:
A petition to reinstate must be filed within 2 months of receiving the Notice of Special Acceptance of Patent Maintenance Fee (PTO-2143) or risk dismissal.

It is strongly recommended that a maintenance fee submission by mail or facsimile include both a telephone number and a mailing address for the fee submitter because, provided the fee is sufficient, the Office may attempt to contact the submitter by telephone and/or by mail to confirm the patent to which the fee is to be applied. If the Office specially accepts a payment under any one of scenarios I – III below, a Notice of Special Acceptance of Patent Maintenance Fee (PTO-2143) will be mailed to the submitter that identifies the patent number and application number to which the maintenance fee was applied and requests the submitter to verify that the payment was applied as intended. If the payment was not applied to the intended patent, a petition (such as a petition under 37 CFR 1.377) must be filed. If the petition is not filed within 2 months of the date of the notice (PTO-2143), the petition may be dismissed as untimely, and relief may have to be pursued under 37 CFR 1.378(a) – (c).

Jump to MPEP Source · 37 CFR 1.377)Petition to ReinstatePatent ReinstatementLate Payment and Reinstatement

Citations

Primary topicCitation
Post-Issuance & Maintenance Fees37 CFR § 1.366(c)
Petition to Reinstate
Post-Issuance & Maintenance Fees
37 CFR § 1.377
Petition to Reinstate
Post-Issuance & Maintenance Fees
37 CFR § 1.378(a)

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31