Office Action checkout

Owner

Nieto Engineering Inc.

Status date

Sep 15, 2026

Deadline

December 15, 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 your proof of use shows your software was launched after your application filing date, so you need to provide a different specimen or adjust your filing basis.