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CORE2CALCULUS

Serial No. 99668297

Owner
Christopher Mahoney
Status date
Jun 29, 2026
Deadline
September 29, 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 us to clarify service descriptions across multiple classes, provide specimens and filing fees, and pay an extra fee for fill-in-the-blank wording.

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