Identification of trademark application or registration.
37 C.F.R. § 2.194
in effectEffective: 2024-07-01(a) No correspondence relating to a trademark application should be filed prior to receipt of the application serial number.
(b) (1) A letter about a trademark application should identify the serial number, the name of the applicant, and the mark.
(2) A letter about a registered trademark should identify the registration number, the name of the registrant, and the mark.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-37.xmlFetched: 7/26/2026
