1104.03 Time for Filing Amendment to Allege Use
An applicant may file an amendment to allege use at any time between the application filing date and the date the examining attorney approves the mark for publication. 37 C.F.R. §2.76(a)(1).
An amendment to allege use may be filed after commencement of an ex parte appeal. See TMEP §1104.07.
An applicant may not file either an amendment to allege use or a statement of use between the date the examining attorney approves the mark for publication and the date of issuance of the notice of allowance. This period, during which no allegation of use may be filed, is known as the "blackout period." See TMEP §1104.03(b).