EFS-Web maintenance

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Patent Alert

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EFS-Web maintenance

The United States Patent and Trademark Office (USPTO) will perform maintenance on the Electronic Filing System-Web (EFS-Web) system beginning at 11:30 p.m. ET, Saturday, July 24, and ending at 5:30 p.m. ET, Sunday, July 25.

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

  • EFS-Web for Registered eFilers
  • EFS-Web for Unregistered eFilers
  • EFS-Web Contingency
  • Patent Center
  • Private PAIR
  • Public PAIR
  • Sponsorship Tool

Saved submissions created prior to the maintenance period may not load properly after the maintenance period. EFS-Web applicants should submit their saved submissions prior to the maintenance period or begin a new submission after the maintenance period.

During the maintenance period, applicants can use an alternative filing method to submit patent applications and follow-on submissions.

For assistance and questions, please contact the Patent Electronic Business Center (EBC) at 1-866-217-9197, Monday through Friday from 6 a.m. to midnight ET, or email ebc@uspto.gov.