USPTO Systems Status and Availability

Thursday May 09, 2019

Planned Events

Network Maintenance

The USPTO and the agency internet service provider will be performing network maintenance beginning at 11:59 p.m., Thursday May 9 and ending at 5 a.m., Friday May 10 ET.

During the maintenance period, access to the following USPTO online payment systems may be intermittent:

  • Electronic Filing System (EFS-Web & EFS-Web Contingency)
  • Electronic System for Trademark Trials and Appeals (ESTTA)
  • Electronic Trademark Assignment System (ETAS)
  • Patent Maintenance Fees Storefront
  • Patent Trial and Appeal Board End to End (PTAB E2E)
  • Trademark Electronic Application System (TEAS)
  • Patent Center
  • Certified Copy Center (CCC)
  • Trademark Electronic Application System-International (TEASi)


Additionally, during the maintenance period the USPTO main page ( may experience intermittent connectivity issues.