Office Action checkout

Owner

KISOS INC

Status date

Jul 20, 2026

Deadline

20 Oct 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 USPTO examiner requires your actual physical business headquarters address rather than a mail receiving service address (Address).