USPTO Systems Status and Availability

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.