USPTO Systems Status and Availability

Friday Sep 17, 2021

Planned Events

Standalone Sponsorship Tool Discontinued

As of September 15, 2021, the standalone Sponsorship Tool at will no longer be available.

Please use the Sponsorship feature in Patent Center to view and manage support staff sponsorships for EFS-Web, Private PAIR, and Patent Center. You may use your same account information to sign in to all filing systems. After signing in to Patent Center at!/, you can access the sponsorship tool under the Manage > Sponsor Users menu option.

If you have browser bookmarks or favorites to the standalone Sponsorship Tool, please update them to!/.

See the Patent Center Sponsorship Guide for more information.

For questions or assistance, please contact the Patent Electronic Business Center (EBC) at 866-217-9197 during their operating hours of 6 a.m. to midnight ET, Monday - Friday,  or email

​EFS-Web Maintenance

The USPTO will perform maintenance on the Electronic Filing System-Web (EFS-Web) system beginning at 12:01 a.m., Saturday, September 18 and ending at 5:30 a.m., Saturday, September 18 ET.

During the maintenance period, the following applications will be unavailable:

  • EFS-Web for Registered eFilers
  • EFS-Web for Unregistered eFilers
  • EFS-Web Contingency

During the maintenance period, applicants can use Patent Center to submit patent applications and follow-on submissions.

For assistance and questions, please contact the Patent EBC at 1-866-217-9197, Monday through Friday from 6 a.m. to midnight ET, or email