What are the official business hours of the USPTO?

Question

Accepted Answer

Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The official business hours of the U.S. Patent and Trademark Office (USPTO) are: 8:30 a.m. to 5:00 p.m., Monday through Friday Excluding federal holidays in the District of Columbia As stated in MPEP 510: “The U.S. Patent and Trademark Office (USPTO or Office) working hours are 8:30 a.m. to 5:00 p.m., Monday through Friday, excluding federal holidays in the District of Columbia.” Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse USPTO Not Open on Holidays and Sundays MPEP 510 USPTO Considered Closed on Official Federal Holidays MPEP 510 Maintenance fee may be paid on next business day if due on holiday MPEP 510 Permitted Priority Mail Express Filing Requirement MPEP 510 Filing Requirement Despite USPTO Closure MPEP 510 Permitted Date Stamp for Priority Mail Express Deposits MPEP 510 Saturday Deposit Stamped with Saturday Date MPEP 510 Office Employees Must Show Building Badges to Enter Patent Search Room MPEP 510 Required Rules for Using Technology Center Facilities MPEP 510 Required TC Facilities Use Limited to USPTO Business Hours MPEP 510 Other Related FAQs 5 FAQs Collapse What are the requirements for accessing USPTO public information facilities? What are the hours for the Public Search Facility in Alexandria? How are filing deadlines affected by USPTO closures? Can I file patent applications on weekends or federal holidays? How can I check if the USPTO is officially closed on a particular day?