MPEP § 710.01 — Statutory Period (Annotated Rules)

§710.01 Statutory Period

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

This page consolidates and annotates all enforceable requirements under MPEP § 710.01, 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.

Statutory Period

This section addresses Statutory Period. Primary authority: 35 U.S.C. 133, 37 CFR 1.135(c), and 37 CFR 1.135. Contains: 2 requirements, 1 permission, and 3 other statements.

Key Rules

Topic

Reply Period and Extensions

4 rules
StatutoryInformativeAlways
[mpep-710-01-f205e35a07b7cd73f5636d7b]
6-Month Reply Period for Office Actions
Note:
Respondents must reply to Office actions within 6 months, with shortened periods commonly used.

The maximum statutory period for reply to an Office action is 6 months. 35 U.S.C. 133. Shortened periods are currently used in practically all cases. See MPEP § 710.02(b).

Jump to MPEP Source · 37 CFR 1.135Reply Period and ExtensionsAbandonment – Missed DeadlineResponse to Office Action Requirements (37 CFR 1.111)
StatutoryInformativeAlways
[mpep-710-01-2805bf733561e02cc2dc9be0]
Extensions of Time for Incomplete Reply
Note:
Permits extensions of time under 37 CFR 1.136(a) or (b) unless the action setting a shortened statutory period specifies otherwise.

37 CFR 1.135(c) now authorizes the examiner to accept a reply to a non-final Office action that is bona fide and is substantially complete but for an inadvertent omission as an adequate reply to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135. When a bona fide attempt to reply includes an inadvertent omission that precludes action on the merits of the application (e.g., an amendment is unsigned or improperly signed, or presents an amendment with additional claims so as to require additional fees pursuant to 37 CFR 1.16(h), (i), or (j)), the examiner may consider that reply adequate to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135, and give the applicant a shortened statutory time period of 2 months to correct the omission (e.g., provide a duplicate paper or ratification, or submit the additional claims fees or cancel the claims so that no fee is due). The failure to timely supply the omission will result in abandonment under 35 U.S.C. 133 and 37 CFR 1.135. Extensions of time under 37 CFR 1.136(a) or (b) will be available, unless the action setting the shortened statutory period indicates otherwise.

Jump to MPEP Source · 37 CFR 1.135(c)Reply Period and ExtensionsAbandonment – Missed DeadlineShortened Statutory Period
StatutoryInformativeAlways
[mpep-710-01-ebb076c856a11e2acf6d52fb]
Examiner's Discretion on Shortened Reply Period
Note:
The examiner has discretion to provide a 2-month shortened statutory time period for applicants to address omissions in previous replies, especially if the omission is not considered inadvertent.

Finally, whether a 2-month shortened statutory time period is provided to the applicant to supply the omission to the previous reply is within the discretion of the examiner. Where the examiner determines that the omission was not inadvertent (e.g., the applicant is abusing the provisions of 37 CFR 1.135(c) to gain additional time to file a proper reply or to delay examination of the application), the examiner should notify the applicant of the omission in the reply and advise the applicant that the omission to the previous reply must be supplied within the period for reply to the prior action, including extensions of time under 37 CFR 1.136(a), if permitted. See also MPEP § 714.03.

Jump to MPEP Source · 37 CFR 1.135(c)Reply Period and ExtensionsResponse to Office Action Requirements (37 CFR 1.111)Shortened Statutory Period
StatutoryRequiredAlways
[mpep-710-01-ea19c9ec914f9dd19e39f92e]
Examiner Must Notify Applicant of Non-Inadvertent Omissions
Note:
The examiner must notify the applicant if an omission was not inadvertent and advise them to supply the missing information within the reply period, including extensions.

Finally, whether a 2-month shortened statutory time period is provided to the applicant to supply the omission to the previous reply is within the discretion of the examiner. Where the examiner determines that the omission was not inadvertent (e.g., the applicant is abusing the provisions of 37 CFR 1.135(c) to gain additional time to file a proper reply or to delay examination of the application), the examiner should notify the applicant of the omission in the reply and advise the applicant that the omission to the previous reply must be supplied within the period for reply to the prior action, including extensions of time under 37 CFR 1.136(a), if permitted. See also MPEP § 714.03.

Jump to MPEP Source · 37 CFR 1.135(c)Reply Period and ExtensionsAbandonment – Missed DeadlineResponse to Office Action Requirements (37 CFR 1.111)
Topic

Abandonment for Failure to Reply

3 rules
StatutoryRequiredAlways
[mpep-710-01-6991a8e624d80763a96e3156]
Complete Reply Required to Save Application from Abandonment
Note:
An application must provide a complete and proper reply as required by the current conditions to avoid abandonment.

(b) Prosecution of an application to save it from abandonment pursuant to paragraph (a) of this section must include such complete and proper reply as the condition of the application may require. The admission of, or refusal to admit, any amendment after final rejection or any amendment not responsive to the last action, or any related proceedings, will not operate to save the application from abandonment.

Jump to MPEP Source · 37 CFR 1.135Abandonment for Failure to ReplyAbandonment & Revival
StatutoryInformativeAlways
[mpep-710-01-dd1f54dafb58186bee2f3030]
Amendments After Final Rejection Cannot Save Application from Abandonment
Note:
The admission of any amendment after final rejection will not prevent an application from being abandoned, regardless of the last action taken.

(b) Prosecution of an application to save it from abandonment pursuant to paragraph (a) of this section must include such complete and proper reply as the condition of the application may require. The admission of, or refusal to admit, any amendment after final rejection or any amendment not responsive to the last action, or any related proceedings, will not operate to save the application from abandonment.

Jump to MPEP Source · 37 CFR 1.135Abandonment for Failure to ReplyAbandonment & Revival
StatutoryInformativeAlways
[mpep-710-01-c94f507a01758dc270e58737]
Amendments After Final Rejection Do Not Save Application
Note:
This rule states that any amendment submitted after a final rejection, whether admitted or not, will not prevent the application from being abandoned.

37 CFR 1.135(b) specifies that: (A) the admission of, or refusal to admit, any amendment after final rejection, or any related proceedings, will not operate to save the application from abandonment; and (B) the admission of, or refusal to admit, any amendment not responsive to the last action, or any related proceedings, will not operate to save the application from abandonment.

Jump to MPEP Source · 37 CFR 1.135(b)Abandonment for Failure to ReplyAbandonment & Revival
Topic

Maintenance Fee Due Dates

3 rules
StatutoryInformativeAlways
[mpep-710-01-df28ef93c7865597874662c1]
Time Limit for Supplying Omission in Reply
Note:
Applicants must supply any omission within a specified time limit after the previous reply, or face abandonment of their application.

The prior practice under 37 CFR 1.135(c) was to set a time limit during which the applicant could supply the omission to the previous reply. Failure to supply the omission resulted in the abandonment of the application as of the due date for the previous reply. Filing a new application during the time limit, but beyond the due date for the previous reply, could have caused a loss of patent rights due to the lack of copendency between the applications.

Jump to MPEP Source · 37 CFR 1.135(c)Maintenance Fee Due DatesMaintenance Fee PaymentAbandonment for Failure to Reply
StatutoryInformativeAlways
[mpep-710-01-7e44242354f04007f3a6b9c7]
Failure to Supply Omission Results in Abandonment
Note:
If the omission is not supplied by the due date for the previous reply, the application will be abandoned.

The prior practice under 37 CFR 1.135(c) was to set a time limit during which the applicant could supply the omission to the previous reply. Failure to supply the omission resulted in the abandonment of the application as of the due date for the previous reply. Filing a new application during the time limit, but beyond the due date for the previous reply, could have caused a loss of patent rights due to the lack of copendency between the applications.

Jump to MPEP Source · 37 CFR 1.135(c)Maintenance Fee Due DatesMaintenance Fee PaymentAbandonment for Failure to Reply
StatutoryInformativeAlways
[mpep-710-01-dd894fa7fec6b80df7a295cb]
New Application Filing After Due Date May Lose Copendency
Note:
If a new application is filed after the due date for the previous reply, it may result in loss of patent rights due to lack of copendency.

The prior practice under 37 CFR 1.135(c) was to set a time limit during which the applicant could supply the omission to the previous reply. Failure to supply the omission resulted in the abandonment of the application as of the due date for the previous reply. Filing a new application during the time limit, but beyond the due date for the previous reply, could have caused a loss of patent rights due to the lack of copendency between the applications.

Jump to MPEP Source · 37 CFR 1.135(c)Maintenance Fee Due DatesMaintenance Fee PaymentPeriod for Reply (37 CFR 1.134)
Topic

Types of Office Actions

2 rules
StatutoryInformativeAlways
[mpep-710-01-70a6d406b1dfcd1a1e3f25eb]
Failure to Reply Within Time Period Results in Abandonment
Note:
If an applicant fails to respond within the time period specified by §1.134 and §1.136, the patent application will be abandoned unless otherwise indicated by an Office action.

(a) If an applicant of a patent application fails to reply within the time period provided under § 1.134 and § 1.136, the application will become abandoned unless an Office action indicates otherwise.

Jump to MPEP Source · 37 CFR 1.134Types of Office ActionsResponse to Office Action Requirements (37 CFR 1.111)Examiner's Action (37 CFR 1.104)
StatutoryPermittedAlways
[mpep-710-01-1432668041ef1cce59ae63e2]
Application Abandoned If No Response Within Time Set by Office Action
Note:
If no reply is filed within the time set in an Office action, the application will be abandoned unless otherwise indicated.

37 CFR 1.135 provides that if no reply is filed within the time set in the Office action under 37 CFR 1.134 or as it may be extended under 37 CFR 1.136, the application will be abandoned unless an Office action indicates otherwise.

Jump to MPEP Source · 37 CFR 1.135Types of Office ActionsResponse to Office Action Requirements (37 CFR 1.111)Abandonment for Failure to Reply
Topic

Six Month Statutory Period

2 rules
StatutoryInformativeAlways
[mpep-710-01-877aedd8caca11cf895f26e1]
Requirement for Six Month Reply Period
Note:
The maximum statutory period to reply to an Office action is six months.

The maximum statutory period for reply to an Office action is 6 months. 35 U.S.C. 133. Shortened periods are currently used in practically all cases. See MPEP § 710.02(b).

Jump to MPEP Source · 37 CFR 1.135Six Month Statutory PeriodAbandonment for Failure to ReplyAbandonment & Revival
StatutoryInformativeAlways
[mpep-710-01-5aaaad7552860f0cfebbf4c4]
Inadequate Reply Due to Inadvertent Omission Results in Abandonment
Note:
If a reply includes an inadvertent omission, it may be considered adequate for avoiding abandonment. However, failure to timely correct the omission will result in abandonment.

37 CFR 1.135(c) now authorizes the examiner to accept a reply to a non-final Office action that is bona fide and is substantially complete but for an inadvertent omission as an adequate reply to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135. When a bona fide attempt to reply includes an inadvertent omission that precludes action on the merits of the application (e.g., an amendment is unsigned or improperly signed, or presents an amendment with additional claims so as to require additional fees pursuant to 37 CFR 1.16(h), (i), or (j)), the examiner may consider that reply adequate to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135, and give the applicant a shortened statutory time period of 2 months to correct the omission (e.g., provide a duplicate paper or ratification, or submit the additional claims fees or cancel the claims so that no fee is due). The failure to timely supply the omission will result in abandonment under 35 U.S.C. 133 and 37 CFR 1.135. Extensions of time under 37 CFR 1.136(a) or (b) will be available, unless the action setting the shortened statutory period indicates otherwise.

Jump to MPEP Source · 37 CFR 1.135(c)Six Month Statutory PeriodAbandonment for Failure to ReplyAbandonment & Revival
Topic

Non-Final Office Action

2 rules
StatutoryInformativeAlways
[mpep-710-01-ff8bccac3c72ff7390bbc4d1]
Examiner May Accept Substantially Complete Reply With Inadvertent Omission
Note:
The examiner may accept a reply to a non-final Office action that is substantially complete but for an inadvertent omission, provided the applicant corrects the omission within 2 months.

37 CFR 1.135(c) now authorizes the examiner to accept a reply to a non-final Office action that is bona fide and is substantially complete but for an inadvertent omission as an adequate reply to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135. When a bona fide attempt to reply includes an inadvertent omission that precludes action on the merits of the application (e.g., an amendment is unsigned or improperly signed, or presents an amendment with additional claims so as to require additional fees pursuant to 37 CFR 1.16(h), (i), or (j)), the examiner may consider that reply adequate to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135, and give the applicant a shortened statutory time period of 2 months to correct the omission (e.g., provide a duplicate paper or ratification, or submit the additional claims fees or cancel the claims so that no fee is due). The failure to timely supply the omission will result in abandonment under 35 U.S.C. 133 and 37 CFR 1.135. Extensions of time under 37 CFR 1.136(a) or (b) will be available, unless the action setting the shortened statutory period indicates otherwise.

Jump to MPEP Source · 37 CFR 1.135(c)Non-Final Office ActionNon-Final Action ContentTypes of Office Actions
StatutoryPermittedAlways
[mpep-710-01-9c4e3162efd85756bb2e04e9]
Reply Omissions Require Clarification
Note:
If a reply to a non-final Office action includes an omission, the examiner may require the applicant to address it to avoid abandonment or treat the reply on its merits.

When a bona fide attempt to reply includes an omission that does not preclude action on the merits of the application (e.g., a reply fails to address a rejection or objection), the examiner may waive the deficiency in the reply and act on the application. The examiner may repeat and make final the rejection, objection, or requirement that was the subject of the omission. Thus, a reply to a non-final Office action that is bona fide but includes an omission may be treated by: (A) issuing an Office action that does not treat the reply on its merits but requires the applicant to supply the omission to avoid abandonment; or (B) issuing an Office action that does treat the reply on its merits (and which can also require the applicant to supply the omission to avoid abandonment).

Jump to MPEP Source · 37 CFR 1.135Non-Final Office ActionNon-Final Action ContentBona Fide Attempt to Advance
Topic

Final Office Action

1 rules
StatutoryPermittedAlways
[mpep-710-01-0a287adc6e2f1e1fad8ba677]
New Time Period for Missing Reply Elements
Note:
Applicant may be given a new time period to address omitted matters in response to a non-final Office action.

(c) When reply by the applicant is a bona fide attempt to advance the application to final action, and is substantially a complete reply to the non-final Office action, but consideration of some matter or compliance with some requirement has been inadvertently omitted, applicant may be given a new time period for reply under § 1.134 to supply the omission.

Jump to MPEP Source · 37 CFR 1.134Final Office ActionNon-Final Office ActionNon-Final Action Content
Topic

Shortened Statutory Period

1 rules
StatutoryInformativeAlways
[mpep-710-01-e91bfc0c5134dcc1186ab3fe]
Shortened Reply Period Is Commonly Used
Note:
The maximum statutory period for reply to an Office action is 6 months, but shortened periods are commonly used in most cases.

The maximum statutory period for reply to an Office action is 6 months. 35 U.S.C. 133. Shortened periods are currently used in practically all cases. See MPEP § 710.02(b).

Jump to MPEP Source · 37 CFR 1.135Shortened Statutory PeriodAbandonment for Failure to ReplyAbandonment & Revival
Topic

Period for Reply (37 CFR 1.134)

1 rules
StatutoryPermittedAlways
[mpep-710-01-84abd4ff9f63441c7faa276b]
Nonstatutory Time Limit for Omission Rescinded
Note:
The requirement for a nonstatutory time limit (1 month) to supply an omission in a previous reply is no longer applicable. Applicants must now respond within a shortened statutory period (2 months) to avoid abandonment.

37 CFR 1.135(c) was amended to change the practice of providing a nonstatutory time limit (generally 1 month) during which an applicant may supply an omission to a previous reply. Under the current practice, the examiner may set a shortened statutory time period (generally 2 months) during which an applicant must supply the omission to the previous reply to avoid abandonment.

Jump to MPEP Source · 37 CFR 1.135(c)Period for Reply (37 CFR 1.134)Period Computation RulesShortened Statutory Period
Topic

Period Computation Rules

1 rules
StatutoryRequiredAlways
[mpep-710-01-e986b87e6c750d1edf389ac4]
Examiner May Set Shortened Time Period for Omission Reply
Note:
The examiner may set a 2-month statutory time period during which an applicant must supply any omitted information from a previous reply to avoid abandonment.

37 CFR 1.135(c) was amended to change the practice of providing a nonstatutory time limit (generally 1 month) during which an applicant may supply an omission to a previous reply. Under the current practice, the examiner may set a shortened statutory time period (generally 2 months) during which an applicant must supply the omission to the previous reply to avoid abandonment.

Jump to MPEP Source · 37 CFR 1.135(c)Period Computation RulesShortened Statutory PeriodStatutory Period Computation (37 CFR 1.134)
Topic

First Action on Merits

1 rules
StatutoryPermittedAlways
[mpep-710-01-6b2f8e13071240b34b91ebf2]
Inadvertent Omission Requirement for Avoiding Abandonment
Note:
The examiner may consider a reply adequate if it includes an inadvertent omission and give the applicant a shortened time period to correct it, avoiding abandonment.

37 CFR 1.135(c) now authorizes the examiner to accept a reply to a non-final Office action that is bona fide and is substantially complete but for an inadvertent omission as an adequate reply to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135. When a bona fide attempt to reply includes an inadvertent omission that precludes action on the merits of the application (e.g., an amendment is unsigned or improperly signed, or presents an amendment with additional claims so as to require additional fees pursuant to 37 CFR 1.16(h), (i), or (j)), the examiner may consider that reply adequate to avoid abandonment under 35 U.S.C. 133 and 37 CFR 1.135, and give the applicant a shortened statutory time period of 2 months to correct the omission (e.g., provide a duplicate paper or ratification, or submit the additional claims fees or cancel the claims so that no fee is due). The failure to timely supply the omission will result in abandonment under 35 U.S.C. 133 and 37 CFR 1.135. Extensions of time under 37 CFR 1.136(a) or (b) will be available, unless the action setting the shortened statutory period indicates otherwise.

Jump to MPEP Source · 37 CFR 1.135(c)First Action on MeritsReply Period and ExtensionsAmendments Adding New Matter
Topic

Insufficient Attempt

1 rules
StatutoryPermittedAlways
[mpep-710-01-4b610017b2737bc5e9adc734]
Examiner May Waive Reply Omissions
Note:
An examiner may overlook a reply's omission if it does not affect the application's merits and issue an action based on the reply or require correction to avoid abandonment.

When a bona fide attempt to reply includes an omission that does not preclude action on the merits of the application (e.g., a reply fails to address a rejection or objection), the examiner may waive the deficiency in the reply and act on the application. The examiner may repeat and make final the rejection, objection, or requirement that was the subject of the omission. Thus, a reply to a non-final Office action that is bona fide but includes an omission may be treated by: (A) issuing an Office action that does not treat the reply on its merits but requires the applicant to supply the omission to avoid abandonment; or (B) issuing an Office action that does treat the reply on its merits (and which can also require the applicant to supply the omission to avoid abandonment).

Jump to MPEP Source · 37 CFR 1.135Insufficient AttemptFirst Action on MeritsNon-Final Action Content

Citations

Primary topicCitation
First Action on Merits
Non-Final Office Action
Reply Period and Extensions
Shortened Statutory Period
Six Month Statutory Period
35 U.S.C. § 133
Final Office Action
Types of Office Actions
37 CFR § 1.134
First Action on Merits
Non-Final Office Action
Reply Period and Extensions
Six Month Statutory Period
Types of Office Actions
37 CFR § 1.135
Abandonment for Failure to Reply37 CFR § 1.135(b)
First Action on Merits
Maintenance Fee Due Dates
Non-Final Office Action
Period Computation Rules
Period for Reply (37 CFR 1.134)
Reply Period and Extensions
Six Month Statutory Period
37 CFR § 1.135(c)
Types of Office Actions37 CFR § 1.136
First Action on Merits
Non-Final Office Action
Reply Period and Extensions
Six Month Statutory Period
37 CFR § 1.136(a)
First Action on Merits
Non-Final Office Action
Reply Period and Extensions
Six Month Statutory Period
37 CFR § 1.16(h)
Reply Period and Extensions
Shortened Statutory Period
Six Month Statutory Period
MPEP § 710.02(b)
Reply Period and ExtensionsMPEP § 714.03

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