Patent Center Maintenance
The USPTO will perform maintenance on Patent Center beginning at 8 p.m., Wednesday, June 22 and ending at 1 a.m., Thursday, June 23 ET.
During the maintenance period, Patent Center will be unavailable. Please use Electronic Filing System-Web (EFS-Web) to electronically file and Private Patent Application Information Retrieval (Private PAIR) to electronically retrieve patent applications.
Electronic Filing System-Web (EFS-Web) Maintenance
The USPTO will perform maintenance on EFS-Web beginning at 8 p.m., Thursday, June 23 and ending at 1 a.m., Friday, June 24 ET.
During the maintenance period, EFS-Web will be unavailable. Please use Patent Center to electronically file patent applications.
Last updated: Wednesday, Jun 22, 2022 at 9:43 AM ET
chevron_left
View past planned events
chevron_right
View current events chevron_right