USPTO Systems Status and Availability
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)

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