MPEP § 2252 — Consideration of Statement and Reply (Annotated Rules)

§2252 Consideration of Statement and Reply

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

This page consolidates and annotates all enforceable requirements under MPEP § 2252, 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.

Consideration of Statement and Reply

This section addresses Consideration of Statement and Reply. Primary authority: 35 U.S.C. 2267, 37 CFR 1.530, and 37 CFR 1.535. Contains: 1 requirement, 1 guidance statement, 2 permissions, and 5 other statements.

Key Rules

Topic

Ex Parte Reexamination

5 rules
StatutoryPermittedAlways
[mpep-2252-7c04ea82a34600d3122e06bd]
Late Responses May Be Refused Consideration
Note:
Patent owners and requesters must file timely responses; untimely submissions will not be considered.

Although 37 CFR 1.540 would appear to be discretionary in stating that late responses “may result in their being refused consideration,” patent owners and requesters can expect consideration to be refused if the statement and/or reply is not timely filed. 37 CFR 1.540 restricts the number and kind of submissions to be considered prior to examination to those expressly provided for in 37 CFR 1.530 and 37 CFR 1.535. Untimely submissions will ordinarily not be considered. Untimely submissions, other than untimely papers filed by the patent owner after the period set for response, will not be placed of record in the reexamination file but will be returned to the sender.

Jump to MPEP Source · 37 CFR 1.540Ex Parte ReexaminationPatent Owner StatementThird Party Requester Reply
StatutoryInformativeAlways
[mpep-2252-6ed46e1e9928fed797c29967]
Untimely Responses Not Considered in Ex Parte Reexamination
Note:
Patent owners and requesters must submit responses timely, as untimely submissions will not be considered.

Although 37 CFR 1.540 would appear to be discretionary in stating that late responses “may result in their being refused consideration,” patent owners and requesters can expect consideration to be refused if the statement and/or reply is not timely filed. 37 CFR 1.540 restricts the number and kind of submissions to be considered prior to examination to those expressly provided for in 37 CFR 1.530 and 37 CFR 1.535. Untimely submissions will ordinarily not be considered. Untimely submissions, other than untimely papers filed by the patent owner after the period set for response, will not be placed of record in the reexamination file but will be returned to the sender.

Jump to MPEP Source · 37 CFR 1.540Ex Parte ReexaminationPatent Owner StatementThird Party Requester Reply
StatutoryInformativeAlways
[mpep-2252-77a159404237ee55b9144753]
Untimely Submissions Not Placed in Record
Note:
Patent owner's untimely submissions, except for those filed after the response period, will not be considered and will be returned to the sender.

Although 37 CFR 1.540 would appear to be discretionary in stating that late responses “may result in their being refused consideration,” patent owners and requesters can expect consideration to be refused if the statement and/or reply is not timely filed. 37 CFR 1.540 restricts the number and kind of submissions to be considered prior to examination to those expressly provided for in 37 CFR 1.530 and 37 CFR 1.535. Untimely submissions will ordinarily not be considered. Untimely submissions, other than untimely papers filed by the patent owner after the period set for response, will not be placed of record in the reexamination file but will be returned to the sender.

Jump to MPEP Source · 37 CFR 1.540Ex Parte ReexaminationPatent Owner StatementThird Party Requester Reply
StatutoryRequiredAlways
[mpep-2252-f1e8f2466b9f82b1f48d83be]
Proof of Service Requirement for Ex Parte Reexamination Papers
Note:
Papers filed without proof of service may be denied consideration in ex parte reexamination.

Any paper for which proof of service is required, which is filed without proof of service, may be denied consideration. Where no proof of service is included, inquiry should be made of the sender by the Central Reexamination Unit as to whether service was in fact made. If no service was made, the paper is placed in the reexamination file but is not considered. See MPEP § 2266.03 and § 2267.

Jump to MPEP Source · 37 CFR 1.540Ex Parte ReexaminationCentral Reexamination Unit Processing
StatutoryInformativeAlways
[mpep-2252-ae491bbf77a6e160476f852d]
Paper Without Proof of Service Not Considered
Note:
If a paper filed without proof of service pertains to ex parte reexamination, it will be placed in the file but not considered unless service was actually made.

Any paper for which proof of service is required, which is filed without proof of service, may be denied consideration. Where no proof of service is included, inquiry should be made of the sender by the Central Reexamination Unit as to whether service was in fact made. If no service was made, the paper is placed in the reexamination file but is not considered. See MPEP § 2266.03 and § 2267.

Jump to MPEP Source · 37 CFR 1.540Ex Parte ReexaminationCentral Reexamination Unit Processing
Topic

Patent Owner Statement

3 rules
StatutoryPermittedAlways
[mpep-2252-2da073a65603f59a97f58f8e]
Timely Filing and Serving of Documents Required in Ex Parte Reexamination
Note:
Documents required by § 1.530 and § 1.535 must be timely filed or served to avoid being refused consideration.

The failure to timely file or serve the documents set forth in § 1.530 or in § 1.535 may result in their being refused consideration. No submissions other than the statement pursuant to § 1.530 and the reply by the ex parte reexamination requester pursuant to § 1.535 will be considered prior to examination.

Jump to MPEP Source · 37 CFR 1.530Patent Owner StatementThird Party Requester ReplyEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2252-868f1884601ad891a2924e33]
Reply by Ex Parte Reexamination Requester Required Before Examination
Note:
The rule requires that only the statement pursuant to §1.530 and the reply by the ex parte reexamination requester pursuant to §1.535 will be considered prior to examination.

The failure to timely file or serve the documents set forth in § 1.530 or in § 1.535 may result in their being refused consideration. No submissions other than the statement pursuant to § 1.530 and the reply by the ex parte reexamination requester pursuant to § 1.535 will be considered prior to examination.

Jump to MPEP Source · 37 CFR 1.530Patent Owner StatementThird Party Requester ReplyEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2252-fcffe085d78332f7867c8e12]
Submissions Must Be Timely and Permitted
Note:
Patent owner submissions must be timely and in accordance with specified requirements to be considered during examination.

Although 37 CFR 1.540 would appear to be discretionary in stating that late responses “may result in their being refused consideration,” patent owners and requesters can expect consideration to be refused if the statement and/or reply is not timely filed. 37 CFR 1.540 restricts the number and kind of submissions to be considered prior to examination to those expressly provided for in 37 CFR 1.530 and 37 CFR 1.535. Untimely submissions will ordinarily not be considered. Untimely submissions, other than untimely papers filed by the patent owner after the period set for response, will not be placed of record in the reexamination file but will be returned to the sender.

Jump to MPEP Source · 37 CFR 1.540Patent Owner StatementThird Party Requester ReplyEx Parte Reexamination
Topic

Central Reexamination Unit Processing

1 rules
StatutoryRecommendedAlways
[mpep-2252-e77f3daff90fb0a3945d48e5]
Inquiry Required for Missing Proof of Service in Ex Parte Reexamination
Note:
The Central Reexamination Unit must inquire about service when proof is missing to determine if it was actually made.

Any paper for which proof of service is required, which is filed without proof of service, may be denied consideration. Where no proof of service is included, inquiry should be made of the sender by the Central Reexamination Unit as to whether service was in fact made. If no service was made, the paper is placed in the reexamination file but is not considered. See MPEP § 2266.03 and § 2267.

Jump to MPEP Source · 37 CFR 1.540Central Reexamination Unit ProcessingEx Parte Reexamination

Citations

Primary topicCitation
Central Reexamination Unit Processing
Ex Parte Reexamination
35 U.S.C. § 2267
Ex Parte Reexamination
Patent Owner Statement
37 CFR § 1.530
Ex Parte Reexamination
Patent Owner Statement
37 CFR § 1.535
Ex Parte Reexamination
Patent Owner Statement
37 CFR § 1.540
Central Reexamination Unit Processing
Ex Parte Reexamination
MPEP § 2266.03

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