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USPTO Systems Status and Availability

Check this page for the latest information on operating status and availability of Online Business Systems. For Standard Hours of Availability for Online Business Systems, System Descriptions, and Operating Requirements/Compatibilities, see the links at left.

Current Status

Thursday Apr 17, 2014

Current Status

Currently there are no events.

Planned Events

Saturday Apr 19, 2014

System Maintenance

System Maintenance

USPTO will perform system maintenance beginning at 12:01 a.m. and ending at 5 a.m., Monday, April 21.

The following systems will be unavailable during the maintenance period.

  • Assignments on the Web - Patents (AOTW-P)
  • Electronic Freedom of Information Act (E-FOIA)
  • Electronic Patent Assignment System (ePAS)
  • Electronic System for Trademark Trials and Appeals (ESTTA)
  • Electronic Trademark Assignment System (eTAS)

United States Patent and Trademark Office
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