{"data":{"id":"us/37-cfr-2.194","jurisdiction":"us","citation":"37 CFR 2.194","heading":"Identification of trademark application or registration.","body":"(a) No correspondence relating to a trademark application should be filed prior to receipt of the application serial number.\n(b) (1) A letter about a trademark application should identify the serial number, the name of the applicant, and the mark.\n(2) A letter about a registered trademark should identify the registration number, the name of the registrant, and the mark.","path":["Title 37—Patents, Trademarks, and Copyrights","CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE","SUBCHAPTER A—GENERAL","PART 2—RULES OF PRACTICE IN TRADEMARK CASES"],"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":"cd1c70c2eb2b4d84e9d145e821fce38ca623378a9b2b6a61fcf52796d62521f4","source_id":"us-cfr","stale":true,"prev":"us/37-cfr-2.193","next":"us/37-cfr-2.195"},"notice":"GroundRules: Original legal text. Not legal advice."}