USPTO Fax Number — Fax Patent and Trademark Filings
The United States Patent and Trademark Office keeps a general fax line at 571-273-8300, with the Trademark division reachable at 571-270-9100. The office runs TEAS for trademark filings and EFS-Web for patent submissions, and those electronic systems are the preferred and often cheaper way to file. Fax still has a place for patent correspondence and office action responses, though certain documents such as new patent applications cannot be filed by fax at all under USPTO rules.
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Patent and Trademark Office Fax Number
571-273-8300
Hours: USPTO: Monday-Friday, 8:30 AM - 5:00 PM ET. Fax available 24/7.
Send a Fax NowWhat You Can Fax to Patent and Trademark Office
- Trademark applications and responses
- Patent office actions responses
- Maintenance fee payments
- Assignment documents
- Power of attorney forms
Tip: Put the application or registration number, and for patents the art unit and attorney docket number, at the top of every page so the document reaches the right examiner. Filing a trademark application on paper or by fax instead of through TEAS adds a $100 processing fee per class, so electronic filing is usually the better choice for cost as well as speed. Reserve fax for office action responses, assignments, and routine correspondence where it is accepted. A Send FAX Mail confirmation gives you a dated record of when 571-273-8300 received your transmission.
Faxing to Patent and Trademark Office — FAQ
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