Office Action checkout

Owner

Lin JinYu

Status date

Oct 23, 2026

Deadline

January 23, 2027

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 provide a properly signed declaration containing the required verification language.