Revision to Rules of Practice Before the Patent Trial and Appeal Board

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Commerce Patent and Trademark Office 37 CFR Part 42 [Docket No. PTO-P-2025-0025] RIN 0651-AD89 AGENCY: United States Patent and Trademark Office, Department of Commerce. ACTION: Notice of proposed rulemaking; extension of comment period. SUMMARY: The United States Patent and Trademark Office (USPTO) is extending the comment period for the proposed rule titled “Revision to Rules of Practice before the Patent Trial and Appeal Board” that was published in the Federal Register on October 17, 2025. The proposed rule's comment period is extended until December 2, 2025. DATES: The comment period for the proposed rule published on October 17, 2025 at 90 FR 48342 is extended until December 2, 2025. The USPTO does not anticipate granting further extensions to the comment period. This extension for the current proposed rule does not imply the USPTO will grant extensions for any future proposed rules. ADDRESSES: For reasons of Government efficiency, comments must be submitted through the Federal eRulemaking Portal at: https://www.regulations.gov . To submit comments via the portal, one should enter docket number PTO-P-2025-0025 on the homepage and select the “Search” button. The site will provide search results listing all documents associated with this docket. Commenters can find a reference to this notice and select the “Comment” button, complete the required fields, and enter or attach their comments. Attachments to electronic comments…