Office Action checkout

Owner

Lufei Wu

Status date

Aug 28, 2026

Deadline

November 28, 2026

Status 641 means the USPTO mailed a non-final Office Action identifying issues with your application. You typically have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application.

The examiner has identified that you need to appoint a U.S.-licensed attorney to represent your application because your domicile is outside the United States and your previous counsel was removed. Additionally, the examiner has deferred the search for conflicting trademarks until this requirement is addressed.