USPTO Systems Status and Availability

Check this page for the latest information on the operating status and availability of our online business systems, such as EFS-Web, Patent Center, PAIR, TEAS, and PTAB End-to-End. Issues impacting remote employees are available on the System 411 blog.

Current Status

Monday Oct 02, 2023

Current Events

There are no current events at this time.

Planned Events

Monday Oct 02, 2023

Planned Events

Trademark Electronic Application System (TEAS) Maintenance

The USPTO will perform maintenance on TEAS beginning at 7 a.m. on Tuesday, October 3 ET.

To minimize the risk of disruption, we recommend closing any active sessions and stopping your work between 7 a.m. and 7:15 a.m. ET.

Cooperative Patent Classification (CPC) Migration  

The USPTO will perform a migration on CPC from the Production Data Center in Alexandria to a new Data Center in Manassas, from 12:01 a.m. until 4:45 a.m. on Wednesday, October 4 ET.  

During the migration window, the CPC and the following systems will be impacted:

  • CPC DB and Classification Allocation Tool (CAT) will be unavailable.
  • The OC Issue Classification form will be impacted by this update as this form requires CPC validation services. You may continue with other OC functionalities.
  • In Docket Application Viewer (DAV), CPC information will be unavailable.
  • In PE2E-Search, Similarity Search will be unavailable.