Electronic Filing System-Web (EFS-Web) Maintenance
The USPTO will perform maintenance on the EFS-Web beginning at 12:01 a.m., Saturday, March 12 and ending at 5 a.m., Saturday, March 12 ET.
During the maintenance period, please use Patent Center as an alternative to electronically file patent applications.
Private Patent Application Information Retrieval (Private PAIR) Maintenance
The USPTO will perform maintenance on Private-PAIR beginning at 12:01 a.m., Sunday, March 13 and ending at 5 a.m., Sunday, March 13 ET.
During the maintenance period, please use Patent Center as an alternative to retrieve patent applications.
Last updated: Tuesday, Mar 8, 2022 at 11:19 AM ET
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