System status and availability
Check this webpage for the latest information on the operating status of USPTO's systems and planned maintenance activities.
Current status of USPTO systems
Electronic System for Trademark Trials and Appeals (ESTTA) Maintenance
Electronic System for Trademark Trials and Appeals (ESTTA) Maintenance
The USPTO will perform routine maintenance on ESTTA from 11-11:59 p.m. ET on Monday, December 23.
ESTTA will be unavailable during the maintenance period.