USPTO Systems Status and Availability

Check this page for the latest information on operating status and availability of Online Business Systems. For Standard Hours of Availability for Online Business Systems, System Descriptions, and Operating Requirements/Compatibilities, see the links at left.

Current Status

Friday Jan 27, 2023

Current Events

Delays in Submission Availability in Patent Center, EFS Web and IFW

Submissions filed via EFS Web and Patent Center are currently experiencing a delay in processing.

Users should allow 24 hours for their submissions to become available.

Planned Events

Friday Jan 27, 2023

Planned Events

Electronic System for Trademark Trials and Appeals (ESTTA) Maintenance 

The USPTO will perform maintenance on the ESTTA system from 12:01 a.m. until 3 a.m. on Saturday, January 28 ET.

ESTTA will be unavailable during the maintenance period.

Electronic Patent Assignments System (EPAS) Maintenance

The USPTO Certified Copy and Assignments (CC&A) Product team will perform an upgrade on the EPAS system from 9 a.m. until 1 p.m. on January 28 ET.

During this maintenance period, the EPAS product will be unavailable.

Private Patent Application Information Retrieval (Private PAIR) and Patent Electronic Filing System-Web (EFS-Web) Maintenance

The USPTO will perform maintenance on Private-PAIR and EFS-Web from 1 a.m. until 2 a.m. on Saturday, January 28 ET.

During the maintenance period, Private-PAIR and EFS-Web will be unavailable.

Users should save all work and log off before the maintenance period begins. 

Please use Patent Center as an alternative to electronically file and retrieve patent applications.

Patent Electronic Filing System-Web (EFS-Web) Maintenance

The USPTO will perform maintenance on EFS-Web from 8 p.m. until 10 p.m. on Sunday, January 29 ET.

During this maintenance period, Fee Worksheets and Acknowledgement Receipts for submissions will not be generated.

Applicants may file submissions in EFS-Web during this time but wait until Monday for those documents to be generated. Applicants may still file submissions via Patent Center.

Patent Office Action to XML (P-OA2XML) Maintenance

The USPTO will perform maintenance on P-OA2XML from 12:01 a.m. until 5:30 a.m. on Wednesday, February 1 ET.

During the maintenance period, DOCX and XML downloads will not be available in Private PAIR and Patent Center.

Users should save all work and log off before the maintenance period begins.

Integrated Quality System (IQS) Maintenance

The USPTO will perform maintenance on the IQS systems from 12:01 a.m. until 5:30 a.m. on Wednesday, February 1 ET.

During the maintenance period, IQS will be unavailable.

Users should save all work and log off before the maintenance period begins.

Multiple Systems Maintenance

The USPTO will perform maintenance affecting multiple systems from 12:01 a.m. until 5:30 a.m. on Thursday, February 2 ET.

During this maintenance period, availability of Supplemental Content data for new applications and follow-ons filed will be delayed in the following systems:

    • Patent Center

    • Private Patent Application Information Retrieval (Private PAIR)

Please check Patent Center or Private-PAIR after the maintenance period 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.

Trademark Electronic Application System (TEAS) and Trademark Electronic Application System International (TEASi) Maintenance

The USPTO will perform maintenance on the TEAS and TEASi systems from 8 a.m. to 2 p.m. on Saturday, February 4 ET.

During the maintenance period, TEAS and TEASi will be unavailable.