Supplemental Content Availability Delays
The USPTO will perform maintenance affecting multiple systems beginning at 8:30 a.m., Wednesday, June 1 and ending at 9:30 p.m., Wednesday, June 1 ET.
Availability of Supplemental Content data for new applications and follow-ons filed during this maintenance period will be delayed in the following systems:
• Patent Center
• Private Patent Application Information Retrieval (Private PAIR)
Please check Patent Center or Private PAIR on Thursday, June 2 for confirmation of availability of the Supplemental Content Data. If you have questions, please contact the Patent Electronic Business Center (EBC) at (866) 217-9197 during their operating hours of 6 a.m. to midnight, Monday - Friday ET, or email ebc@uspto.gov.
Electronic System for Trademark Trials and Appeals (ESTTA) Maintenance
The USPTO will perform maintenance on ESTTA beginning at 11:59 a.m., Friday, June 3 and ending at 5 a.m., Saturday, June 4 ET.
During the maintenance period, ESTTA will be unavailable.