USPTO Systems Status and Availability
Wednesday Oct 09, 2013

FAX Server (Update) and TEASi Maintenance

FAX Server Maintenance (Update)

USPTO will be upgrading its fax servers starting at 12:15 a.m. Saturday, October 12 and ending at 10 p.m., Sunday, October 13. Faxes will not be received or sent. Please see below for guidance concerning alternative filing methods:


Please use EFS-Web or Priority Mail Express (formerly Express Mail) from the United States Postal Service (USPS) in accordance with 37 CFR 1.10. Refer to the EFS-Web Legal Framework ( for additional information.

If you have any questions, contact the Patent EBC from 6 a.m. to midnight, Eastern Time, Monday through Friday by phone at 866-217-9197 or by email at


USPTO recommends using the Trademark Electronic Application System (TEAS). Please be advised that a deadline that falls on a Saturday, Sunday or federal holiday within the District of Columbia extends the due date to the next succeeding day that is not a Saturday, Sunday, or federal holiday. 37 C.F.R. §2.196. See TMEP §308. If you have any questions, contact the TEAS Team by email at

TEASi Maintenance

The USPTO will perform maintenance on the Trademark Electronic Application Submission International (TEASi) beginning at 12:01 a.m. and ending at 5 a.m., Wednesday, October 16.

TEASi will be unavailable during the maintenance period. We sincerely apologize for any inconvenience this may cause.

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