Published on: 07/21/2021 9:50 AM
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EFS-Web maintenance
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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.
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