MPEP § 1207.03(c) — Appellant’s Reply to New Grounds of Rejection (Annotated Rules)

§1207.03(c) Appellant's Reply to New Grounds of Rejection

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

This page consolidates and annotates all enforceable requirements under MPEP § 1207.03(c), 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.

Appellant's Reply to New Grounds of Rejection

This section addresses Appellant's Reply to New Grounds of Rejection. Primary authority: 37 CFR 41.39(b), 37 CFR 41.40, and 37 CFR 41.39. Contains: 3 requirements, 1 guidance statement, 2 permissions, and 6 other statements.

Key Rules

Topic

New Ground of Rejection in Answer

10 rules
StatutoryInformativeAlways
[mpep-1207-03-c-6524ccde91c4d7f1a73a325d]
Review Procedure for Undesignated New Rejections
Note:
Appellants must follow the procedure in 37 CFR 41.40 if they believe there is an undesignated new ground of rejection not previously addressed.

The provisions of 37 CFR 41.39(b) apply only to rejections that are designated as new grounds of rejection in the examiner's answer. If appellant believes there is an undesignated new ground of rejection, review is by way of the procedure established in 37 CFR 41.40.

Jump to MPEP Source · 37 CFR 41.39(b)New Ground of Rejection in AnswerEx Parte Appeals to PTABExaminer's Answer Content
StatutoryRequiredAlways
[mpep-1207-03-c-88d88f92aa235045f7efaf21]
Appellant Must Reply to New Grounds of Rejection Within Two Months
Note:
The appellant must file a reply addressing each new ground of rejection in the examiner’s answer and may include amendments, evidence, or arguments within two months from the mailing of the examiner’s answer.

If appellant requests that prosecution be reopened, the appellant must file a reply that addresses each new ground of rejection set forth in the examiner’s answer in compliance with 37 CFR 1.111 within two months from the mailing of the examiner’s answer. The reply may also include amendments, evidence, and/or arguments directed to claims not subject to the new ground of rejection or other rejections. If there is an after-final amendment (or affidavit or other evidence) that was not entered, appellant may include such amendment (or affidavit or other evidence) in the reply to the examiner’s answer.

Jump to MPEP Source · 37 CFR 1.111New Ground of Rejection in AnswerEx Parte Appeals to PTABExaminer's Answer
StatutoryPermittedAlways
[mpep-1207-03-c-c10a76f4932e99e528257d36]
Reply May Include New Evidence Not Entered
Note:
Appellant must include any after-final amendment, affidavit, or other evidence not previously entered in the reply to the examiner’s answer addressing new grounds of rejection.

If appellant requests that prosecution be reopened, the appellant must file a reply that addresses each new ground of rejection set forth in the examiner’s answer in compliance with 37 CFR 1.111 within two months from the mailing of the examiner’s answer. The reply may also include amendments, evidence, and/or arguments directed to claims not subject to the new ground of rejection or other rejections. If there is an after-final amendment (or affidavit or other evidence) that was not entered, appellant may include such amendment (or affidavit or other evidence) in the reply to the examiner’s answer.

Jump to MPEP Source · 37 CFR 1.111New Ground of Rejection in AnswerEx Parte Appeals to PTABExaminer's Answer
StatutoryRequiredAlways
[mpep-1207-03-c-f3504a3bb8457dfc5289b587]
Examiner Must Sua Sponte Dismiss Appeal If Reply Not Bona Fide After Two Months
Note:
If the reply does not address new grounds of rejection and is not bona fide, the examiner must dismiss the appeal on their own initiative after the two-month period has expired.

If the reply is not fully responsive to the new ground of rejection, but the reply is bona fide, the examiner should provide a time period for appellant to complete the reply pursuant to 37 CFR 1.135(c). See MPEP § 714.03. If the reply is not bona fide (e.g., does not address the new ground of rejection) and the two-month time period has expired, examiner must sua sponte dismiss the appeal. See subsection “III. Failure to Reply to a New Ground of Rejection” below.

Jump to MPEP Source · 37 CFR 1.135(c)New Ground of Rejection in AnswerAbandonment & AppealsEx Parte Appeals to PTAB
StatutoryInformativeAlways
[mpep-1207-03-c-9caba074db3846dc6844fa60]
Reply Required for New Grounds of Rejection
Note:
Appellant must provide a responsive reply to new grounds of rejection within two months; otherwise, the appeal may be dismissed.

If the reply is not fully responsive to the new ground of rejection, but the reply is bona fide, the examiner should provide a time period for appellant to complete the reply pursuant to 37 CFR 1.135(c). See MPEP § 714.03. If the reply is not bona fide (e.g., does not address the new ground of rejection) and the two-month time period has expired, examiner must sua sponte dismiss the appeal. See subsection “III. Failure to Reply to a New Ground of Rejection” below.

Jump to MPEP Source · 37 CFR 1.135(c)New Ground of Rejection in AnswerAbandonment for Failure to ReplyExaminer's Answer
StatutoryRequiredAlways
[mpep-1207-03-c-50d30af10c064f9f5889d004]
Examiner Must Reopen Prosecution After Appellant's Reply
Note:
The examiner must reopen prosecution by considering the reply from the appellant in response to a new ground of rejection, unless the new ground is not necessitated by the amendment or based on recent information.

Once appellant files a reply in compliance with 37 CFR 1.111 in response to an examiner’s answer that contains a new ground of rejection, the examiner must reopen prosecution by entering and considering the reply. The examiner may make the next Office action final unless the examiner introduces a new ground of rejection that is neither necessitated by the applicant’s amendment of the claims nor based on information submitted in an information disclosure statement filed during the period set forth in 37 CFR 1.97(c) with the fee set forth in 37 CFR 1.17(p). See MPEP § 706.07(a).

Jump to MPEP Source · 37 CFR 1.111New Ground of Rejection in AnswerExaminer Sustained – Amendment OptionsReopening Prosecution After Appeal
StatutoryInformativeAlways
[mpep-1207-03-c-926f36b66ab6e69aacd82e37]
New Arguments Not Raised Before Not Considered Unless Good Cause Shown
Note:
The Board will not consider any new arguments in the reply brief that were not raised in the appeal brief or are not responsive to the examiner’s answer, unless good cause is shown.

The reply brief may include new arguments responsive to the designated new grounds of rejection. Any argument raised in the reply brief which was not raised in the appeal brief, or is not responsive to an argument raised in the examiner’s answer, including any designated new ground of rejection, will not be considered by the Board for purposes of the appeal, unless good cause is shown.

Jump to MPEP Source · 37 CFR 41.39New Ground of Rejection in AnswerReply Brief FilingReply Brief and Forwarding
StatutoryInformativeAlways
[mpep-1207-03-c-1313aee49f3eae37d14995ce]
Jurisdiction Passes to Board on Reply Brief Filing
Note:
The Board gains jurisdiction over the proceeding upon filing of a reply brief, and examiners will not assess the sufficiency of responses to new grounds of rejection.

As specified in 37 CFR 41.35, jurisdiction over the proceeding passes to the Board on filing of a reply brief or the expiration of time to file a reply brief. Therefore, examiners will not normally make determinations as to the sufficiency of a reply to a new ground of rejection.

Jump to MPEP Source · 37 CFR 41.35New Ground of Rejection in AnswerJurisdiction Transfer to BoardReply Brief Filing
StatutoryInformativeAlways
[mpep-1207-03-c-7b377ba81fc904f2a5c3218f]
Appeal Dismissed for Missing Reply to New Grounds of Rejection
Note:
If an appellant fails to timely file a reply under 37 CFR 1.111 or a reply brief in response to an examiner’s answer containing new grounds of rejection, the appeal will be dismissed as to the claims subject to those grounds.

If appellant fails to timely file a reply under 37 CFR 1.111 or a reply brief in response to an examiner’s answer that contains a new ground of rejection, the appeal will be sua sponte dismissed as to the claims subject to the new ground of rejection. If all of the claims under appeal are subject to the new ground of rejection, the entire appeal will be dismissed.

Jump to MPEP Source · 37 CFR 1.111New Ground of Rejection in AnswerReply Brief FilingReply Brief and Forwarding
StatutoryInformativeAlways
[mpep-1207-03-c-9e31d6755b1966d0a92dd093]
Entire Appeal Dismissed for New Grounds of Rejection
Note:
If all claims under appeal are subject to a new ground of rejection, the entire appeal will be dismissed.

If appellant fails to timely file a reply under 37 CFR 1.111 or a reply brief in response to an examiner’s answer that contains a new ground of rejection, the appeal will be sua sponte dismissed as to the claims subject to the new ground of rejection. If all of the claims under appeal are subject to the new ground of rejection, the entire appeal will be dismissed.

Jump to MPEP Source · 37 CFR 1.111New Ground of Rejection in AnswerEx Parte Appeals to PTABExaminer's Answer
Topic

Examiner's Answer Content

2 rules
StatutoryInformativeAlways
[mpep-1207-03-c-1f4457405f4a55d63895626b]
Rejections Designated as New Grounds Only Apply to Specific Rules
Note:
The provisions of 37 CFR 41.39(b) apply only to rejections that are designated as new grounds of rejection in the examiner's answer.

The provisions of 37 CFR 41.39(b) apply only to rejections that are designated as new grounds of rejection in the examiner's answer. If appellant believes there is an undesignated new ground of rejection, review is by way of the procedure established in 37 CFR 41.40.

Jump to MPEP Source · 37 CFR 41.39(b)Examiner's Answer ContentNew Ground of Rejection in AnswerExaminer's Answer
StatutoryPermittedAlways
[mpep-1207-03-c-107e6500f9c1aea88d31527a]
Reply Brief Must Address New Grounds of Rejection
Note:
The reply brief must include new arguments responsive to any designated new grounds of rejection not previously addressed in the appeal brief or examiner’s answer.

The reply brief may include new arguments responsive to the designated new grounds of rejection. Any argument raised in the reply brief which was not raised in the appeal brief, or is not responsive to an argument raised in the examiner’s answer, including any designated new ground of rejection, will not be considered by the Board for purposes of the appeal, unless good cause is shown.

Jump to MPEP Source · 37 CFR 41.39Examiner's Answer ContentNew Ground of Rejection in AnswerReply Brief Filing
Topic

Three-Month Issue Fee Period

1 rules
StatutoryInformativeAlways
[mpep-1207-03-c-b86eb922fa60a59dd733192f]
Two-Month Reply Not Extendable for New Grounds of Rejection
Note:
The two-month time period for responding to new grounds of rejection is not extendable under 37 CFR 1.136(a) but can be extended under 37 CFR 1.136(b) for patent applications and 37 CFR 1.550(c) for ex parte reexamination proceedings.

The two month time period for reply is not extendable under 37 CFR 1.136(a), but is extendable under 37 CFR 1.136(b) for patent applications and 37 CFR 1.550(c) for ex parte reexamination proceedings. See 37 CFR 41.39(c).

Jump to MPEP Source · 37 CFR 1.136(a)Three-Month Issue Fee PeriodAppeal-Related PeriodsNon-Extendable Periods
Topic

Abandonment – Insufficient Reply

1 rules
StatutoryRecommendedAlways
[mpep-1207-03-c-2b0cb12dac1b113e557959be]
Examiner Must Provide Time to Respond to New Rejection
Note:
If the reply is not fully responsive but genuine, the examiner must give a time period for completion under 37 CFR 1.135(c).

If the reply is not fully responsive to the new ground of rejection, but the reply is bona fide, the examiner should provide a time period for appellant to complete the reply pursuant to 37 CFR 1.135(c). See MPEP § 714.03. If the reply is not bona fide (e.g., does not address the new ground of rejection) and the two-month time period has expired, examiner must sua sponte dismiss the appeal. See subsection “III. Failure to Reply to a New Ground of Rejection” below.

Jump to MPEP Source · 37 CFR 1.135(c)Abandonment – Insufficient ReplyNew Ground of Rejection in AnswerAbandonment & Appeals
Topic

Amendments Adding New Matter

1 rules
StatutoryPermittedAlways
[mpep-1207-03-c-f803d8b641c3ddabb1a20916]
Next Office Action May Be Final Unless New Grounds Are Introduced
Note:
The examiner may make the next Office action final unless new grounds of rejection are introduced that are not necessitated by applicant’s claims amendments or based on information disclosed during a specific period.

Once appellant files a reply in compliance with 37 CFR 1.111 in response to an examiner’s answer that contains a new ground of rejection, the examiner must reopen prosecution by entering and considering the reply. The examiner may make the next Office action final unless the examiner introduces a new ground of rejection that is neither necessitated by the applicant’s amendment of the claims nor based on information submitted in an information disclosure statement filed during the period set forth in 37 CFR 1.97(c) with the fee set forth in 37 CFR 1.17(p). See MPEP § 706.07(a).

Jump to MPEP Source · 37 CFR 1.111Amendments Adding New MatterNew Ground of Rejection in AnswerExaminer Sustained – Amendment Options
Topic

Appeal Brief Timing

1 rules
StatutoryRequiredAlways
[mpep-1207-03-c-94911c7b5f3631c2daf0624f]
Appellant Must File Reply Brief Addressing New Grounds of Rejection Within Two Months
Note:
If appellant requests to maintain the appeal, they must file a reply brief addressing each new ground of rejection within two months from the mailing of the answer.
If appellant requests that the appeal be maintained, the appellant must file a reply brief that addresses each new ground of rejection set forth in the answer in compliance with 37 CFR 41.37(c)(1)(vii) within two months from the mailing of the answer. The reply brief should include the following items, with each item starting on a separate page, so as to follow the other requirements of a brief as set forth in 37 CFR 41.37(c):
  • (1) Identification page setting forth the appellant’s name(s), the application number, the filing date of the application, the title of the invention, the name of the examiner, the art unit of the examiner and the title of the paper (i.e., Reply Brief);
  • (2) Argument page(s).
Jump to MPEP Source · 37 CFR 41.37(c)(1)(vii)Appeal Brief TimingNew Ground of Rejection in AnswerReply Brief Filing
Topic

Reply Brief Filing

1 rules
StatutoryProhibitedAlways
[mpep-1207-03-c-fa10b1a82b13b3cc7115e342]
Examiner May Not Answer Reply Brief Without Board Remand
Note:
The examiner may not respond to an appellant's reply brief unless the Board remands the appeal for further action by the examiner.

Unless the Board remands the appeal under 37 CFR 41.50(a)(1) for further action by the examiner, the examiner may not answer the reply brief. Jurisdiction passes to the Board immediately on filing of a reply brief or expiration of the period to do so.

Jump to MPEP Source · 37 CFR 41.50(a)(1)Reply Brief FilingReply Brief and ForwardingPTAB Jurisdiction
Topic

Jurisdiction Transfer to Board

1 rules
StatutoryInformativeAlways
[mpep-1207-03-c-3936ec1f5732d54a9ce62fc0]
Board Gains Jurisdiction on Reply Filing
Note:
The Board gains jurisdiction immediately upon filing a reply brief or the expiration of the period to do so, unless the appeal is remanded for further examiner action.

Unless the Board remands the appeal under 37 CFR 41.50(a)(1) for further action by the examiner, the examiner may not answer the reply brief. Jurisdiction passes to the Board immediately on filing of a reply brief or expiration of the period to do so.

Jump to MPEP Source · 37 CFR 41.50(a)(1)Jurisdiction Transfer to BoardReply Brief FilingReply Brief and Forwarding
Topic

PTAB Jurisdiction

1 rules
StatutoryRecommendedAlways
[mpep-1207-03-c-4a8b2d09b9c49d18bf97f800]
Procedure for Examiner After Board Dismissal of Appeal
Note:
The examiner must follow the procedure in MPEP § 1215 after the Board dismisses an appeal.

If the appeal is dismissed by the Board, the examiner should follow the procedure set forth in MPEP § 1215.

Jump to MPEP Source · 37 CFR 41.39PTAB JurisdictionPTAB Contested Case ProceduresEx Parte Appeals to PTAB

Citations

Primary topicCitation
Amendments Adding New Matter
New Ground of Rejection in Answer
37 CFR § 1.111
Abandonment – Insufficient Reply
New Ground of Rejection in Answer
37 CFR § 1.135(c)
Three-Month Issue Fee Period37 CFR § 1.136(a)
Three-Month Issue Fee Period37 CFR § 1.136(b)
Amendments Adding New Matter
New Ground of Rejection in Answer
37 CFR § 1.17(p)
Three-Month Issue Fee Period37 CFR § 1.550(c)
Amendments Adding New Matter
New Ground of Rejection in Answer
37 CFR § 1.97(c)
New Ground of Rejection in Answer37 CFR § 41.35
Appeal Brief Timing37 CFR § 41.37(c)
Appeal Brief Timing37 CFR § 41.37(c)(1)(vii)
Examiner's Answer Content
New Ground of Rejection in Answer
37 CFR § 41.39(b)
37 CFR § 41.39(b)(1)
Three-Month Issue Fee Period37 CFR § 41.39(c)
Examiner's Answer Content
New Ground of Rejection in Answer
37 CFR § 41.40
37 CFR § 41.41
Jurisdiction Transfer to Board
Reply Brief Filing
37 CFR § 41.50(a)(1)
PTAB JurisdictionMPEP § 1215
Amendments Adding New Matter
New Ground of Rejection in Answer
MPEP § 706.07(a)
Abandonment – Insufficient Reply
New Ground of Rejection in Answer
MPEP § 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