Office Action checkout

Owner

Bangyu, Huang

Status date

Aug 25, 2026

Deadline

November 25, 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 requires a U.S.-licensed attorney and has placed your application under administrative review due to proceedings involving your previous attorney, which is a serious issue that may not be fixable.