MPEP § 2270 — Clerical Handling (Annotated Rules)

§2270 Clerical Handling

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

This page consolidates and annotates all enforceable requirements under MPEP § 2270, 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.

Clerical Handling

This section addresses Clerical Handling. Primary authority: 35 U.S.C. 302, 35 U.S.C. 304, and 35 U.S.C. 257. Contains: 1 requirement and 4 other statements.

Key Rules

Topic

Amendments in Reexamination

2 rules
StatutoryRequiredAlways
[mpep-2270-989090c91400aefa4fb8aa53]
New Matter Must Be Removed From Claims
Note:
Claims containing new matter must be rejected under 35 U.S.C. 112 if an amendment is submitted in proper form prior to a final action.

Where an amendment is submitted in proper form prior to a final action and it is otherwise appropriate to enter the amendment, the amendment will be entered for purposes of the reexamination proceeding, even though the amendment does not have legal effect until the certificate is issued. Any “new matter” amendment to the disclosure (35 U.S.C. 132) will be required to be canceled, and claims containing new matter will be rejected under 35 U.S.C. 112. A “new matter” amendment to the drawing is ordinarily not entered. See MPEP §§ 608.04, 608.04(a), and 608.04(c). Where an amendment enlarges the scope of the claims of the patent, the amendment will be entered; however the appropriate claims will be rejected under 35 U.S.C. 305.

Jump to MPEP SourceAmendments in ReexaminationScope of Amendments PermittedReexamination Certificate
StatutoryInformativeAlways
[mpep-2270-6d1e163dc9e5569efdd6f02e]
Drawing Amendments Not Entered Ordinarily
Note:
A new matter amendment to the drawing is not typically entered in reexamination proceedings.

Where an amendment is submitted in proper form prior to a final action and it is otherwise appropriate to enter the amendment, the amendment will be entered for purposes of the reexamination proceeding, even though the amendment does not have legal effect until the certificate is issued. Any “new matter” amendment to the disclosure (35 U.S.C. 132) will be required to be canceled, and claims containing new matter will be rejected under 35 U.S.C. 112. A “new matter” amendment to the drawing is ordinarily not entered. See MPEP §§ 608.04, 608.04(a), and 608.04(c). Where an amendment enlarges the scope of the claims of the patent, the amendment will be entered; however the appropriate claims will be rejected under 35 U.S.C. 305.

Jump to MPEP SourceAmendments in ReexaminationScope of Amendments PermittedReexamination Certificate
Topic

Reexamination Order

1 rules
StatutoryInformativeAlways
[mpep-2270-ac08f2e5fd618de4c3c8a3f0]
Amendments for Reexamination Must Comply with Rules
Note:
Amendments submitted with a request filed under specific U.S. statutes and after reexamination is ordered must comply with certain rules to be entered in the reexamination file before a final action.

Amendments submitted with a request filed under 35 U.S.C. 302, or after reexamination is ordered under 35 U.S.C. 304 or under 35 U.S.C. 257, and which comply with 37 CFR 1.530(d) – (j), will generally be entered for purposes of reexamination in the reexamination file if submitted prior to a final action. See MPEP § 2234 and § 2250 for the manner of entering amendments.

Jump to MPEP Source · 37 CFR 1.530(d)Reexamination OrderPatent Owner StatementEx Parte Reexamination
Topic

Reissue and Reexamination

1 rules
StatutoryInformativeAlways
[mpep-2270-2661bed41127ae8145ae97c1]
Amendments Required for Merged Reissue-Reexamination
Note:
Merges reissue and reexamination procedures, requiring specific amendments as per MPEP sections 2283 and 2285.

For entry of amendments in a merged reissue-reexamination proceeding, see MPEP § 2283 and § 2285.

Jump to MPEP SourceReissue and ReexaminationMerged Reexamination ProceedingsConcurrent Reissue Proceedings
Topic

Reexamination Certificate

1 rules
StatutoryInformativeAlways
[mpep-2270-16311994456cba503a11ccbe]
Amendment Entered for Reexamination Despite Lack of Legal Effect
Note:
An amendment submitted in proper form before final action and deemed appropriate will be entered for reexamination purposes, even if it lacks legal effect until the certificate is issued.

Where an amendment is submitted in proper form prior to a final action and it is otherwise appropriate to enter the amendment, the amendment will be entered for purposes of the reexamination proceeding, even though the amendment does not have legal effect until the certificate is issued. Any “new matter” amendment to the disclosure (35 U.S.C. 132) will be required to be canceled, and claims containing new matter will be rejected under 35 U.S.C. 112. A “new matter” amendment to the drawing is ordinarily not entered. See MPEP §§ 608.04, 608.04(a), and 608.04(c). Where an amendment enlarges the scope of the claims of the patent, the amendment will be entered; however the appropriate claims will be rejected under 35 U.S.C. 305.

Jump to MPEP SourceReexamination CertificateAmendments in ReexaminationConclusion of Ex Parte Reexamination
Topic

Scope of Amendments Permitted

1 rules
StatutoryInformativeAlways
[mpep-2270-05c6c86328416532ae0dfa59]
Amendment Enlarging Claims Must Be Entered But Rejected
Note:
An amendment that enlarges the scope of patent claims must be entered but will be rejected under 35 U.S.C. 305.

Where an amendment is submitted in proper form prior to a final action and it is otherwise appropriate to enter the amendment, the amendment will be entered for purposes of the reexamination proceeding, even though the amendment does not have legal effect until the certificate is issued. Any “new matter” amendment to the disclosure (35 U.S.C. 132) will be required to be canceled, and claims containing new matter will be rejected under 35 U.S.C. 112. A “new matter” amendment to the drawing is ordinarily not entered. See MPEP §§ 608.04, 608.04(a), and 608.04(c). Where an amendment enlarges the scope of the claims of the patent, the amendment will be entered; however the appropriate claims will be rejected under 35 U.S.C. 305.

Jump to MPEP SourceScope of Amendments PermittedAmendments in ReexaminationEx Parte Reexamination

Citations

Primary topicCitation
Amendments in Reexamination
Reexamination Certificate
Scope of Amendments Permitted
35 U.S.C. § 112
Amendments in Reexamination
Reexamination Certificate
Scope of Amendments Permitted
35 U.S.C. § 132
Reexamination Order35 U.S.C. § 2250
Reissue and Reexamination35 U.S.C. § 2285
Reexamination Order35 U.S.C. § 257
Reexamination Order35 U.S.C. § 302
Reexamination Order35 U.S.C. § 304
Amendments in Reexamination
Reexamination Certificate
Scope of Amendments Permitted
35 U.S.C. § 305
Reexamination Order37 CFR § 1.530(d)
Reexamination OrderMPEP § 2234
Reissue and ReexaminationMPEP § 2283
Amendments in Reexamination
Reexamination Certificate
Scope of Amendments Permitted
MPEP § 608.04

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