MPEP § 2658 — Scope of Inter Partes Reexamination (Annotated Rules)

§2658 Scope of Inter Partes Reexamination

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

This page consolidates and annotates all enforceable requirements under MPEP § 2658, 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.

Scope of Inter Partes Reexamination

This section addresses Scope of Inter Partes Reexamination.

Key Rules

Topic

AIA Effective Dates

2 rules
StatutoryInformativeAlways
[mpep-2658-9d15cb789f4d3c74ece6a32d]
Inter Partes Reexamination Not Acceptable After September 16, 2012
Note:
The Office no longer accepts requests for inter partes reexamination filed on or after the specified date.

The Office does not accept requests for inter partes reexamination filed on or after September 16, 2012. See 37 CFR 1.913(b). Guidance on the former practice is available in revision 07.2022 of the 9 th Edition of the MPEP.

Jump to MPEP Source · 37 CFR 1.913(b)AIA Effective DatesAIA Overview and Effective DatesAIA vs Pre-AIA Practice
StatutoryInformativeAlways
[mpep-2658-06a0f9e4f08a49ea62f996fb]
Inter Partes Reexamination Not Acceptable After September 16, 2012
Note:
The Office no longer accepts inter partes reexamination requests filed after the specified date.

The Office does not accept requests for inter partes reexamination filed on or after September 16, 2012. See 37 CFR 1.913(b). Guidance on the former practice is available in revision 07.2022 of the 9 th Edition of the MPEP.

Jump to MPEP Source · 37 CFR 1.913(b)AIA Effective DatesAIA Overview and Effective DatesAIA vs Pre-AIA Practice

Citations

Primary topicCitation
AIA Effective Dates37 CFR § 1.913(b)

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