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USPTO Systems Status and Availability

Thursday Apr 17, 2014

ESTTA and E-Patent Reference Maintenances

ESTTA Maintenance

USPTO will perform maintenance affecting the Electronic System for Trademark Trials and Appeals (ESTTA) beginning at 12:01 a.m. and ending at 6 a.m., Saturday, April 19.

ESTTA will be unavailable during the maintenance period.

E-Patent Reference Maintenance

USPTO will perform maintenance affecting E-Patent Reference (EPR) beginning at 12:01 a.m. and ending at 5 a.m., Saturday, April 19.

EPR data viewed through Private Patent Application Information Retrieval (Private PAIR) will be unavailable during the maintenance period.

 

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