{"data":{"id":"us/37-cfr-41.10","jurisdiction":"us","citation":"37 CFR 41.10","heading":"Correspondence addresses.","body":"Except as the Board may otherwise direct,\n(a) Appeals. Correspondence in an application or a patent involved in an appeal (subparts B and C of this part) during the period beginning when an appeal docketing notice is issued and ending when a decision has been rendered by the Board, as well as any request for rehearing of a decision by the Board, shall be mailed to: Patent Trial and Appeal Board, United States Patent and Trademark Office, PO Box 1450, Alexandria, Virginia 22313-1450. Notices of appeal, appeal briefs, reply briefs, requests for oral hearing, as well as all other correspondence in an application or a patent involved in an appeal to the Board for which an address is not otherwise specified, should be addressed as set out in § 1.1(a)(1)(i) of this title.\n(b) Interferences. Mailed correspondence in interference (subpart D of this part) shall be sent to Mail Stop INTERFERENCE, Patent Trial and Appeal Board, United States Patent and Trademark Office, PO Box 1450, Alexandria, Virginia 22313-1450.\n(c) Trial Proceedings. Correspondence in trial proceedings (part 42 of this title) are governed by § 42.6(b) of this title.","path":["Title 37—Patents, Trademarks, and Copyrights","CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE","SUBCHAPTER A—GENERAL","PART 41—PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD","Subpart A—General Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-37.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:45Z","sha256":"3bf8e34ac420d76ebc4a534d1351f4869f6a3bf2e0442c11773ad51c10191643","source_id":"us-cfr","stale":true,"prev":"us/37-cfr-41.9","next":"us/37-cfr-41.11"},"notice":"GroundRules: Original legal text. Not legal advice."}