USPTO Systems Status and Availability

Wednesday May 03, 2023

Planned Events

Patent Electronic Filing System-Web (EFS-Web) Maintenance

The USPTO will perform maintenance on EFS-Web from 8 p.m. until 10 p.m. on Sunday, May 7 ET.

During this maintenance period, Fee Worksheets and Acknowledgement Receipts for submissions will not be generated.

Applicants may file submissions in EFS-Web during this time but wait until Monday for those documents to be generated. Applicants may still file submissions via Patent Center.