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

Tuesday Jul 02, 2019

Current Events

PKI permanently disabled for EFS-Web and Private PAIR

PKI authentication for EFS-Web and Private PAIR is permanently disabled. Additional information and updates will continue to be posted on this USPTO systems status and availability page

Practitioners and independent inventors need a verified account to access EFS-Web for registered eFilers and Private PAIR. Support staff working on behalf of a practitioner needs to be sponsored to obtain access.

The deadline for migration from a PKI certificate to a account is July 16. Please ensure that you migrated the proper PKI to the correct account, or reverse incorrectly migrated accounts prior to July 16. New customers, or customers who do not migrate by the migration deadline, can obtain a verified account using the new verification process. For more information on migrations and sponsorships, please visit the authentication change webpage for guidance.

If you do not have a verified account and need to urgently file a new patent application, you can use EFS-Web for unregistered eFilers or EFS-Web contingency. Additionally, if you need to file a follow-on submission and do not have a verified account, use an alternative filing method.

If you have questions or need to reverse an incorrectly migrated account, contact the Patent Electronic Business Center (EBC) at or 866-217-9197.

Planned Events

Monday Jul 15, 2019

Planned Events

USPTO Assignment Search

The USPTO will perform maintenance on USPTO Assignment Search beginning at 12:01 a.m. Wednesday, July 17 and ending 1 a.m., Wednesday, July 17 ET.

Users may experience a momentary outage to the USPTO Assignment Search during this maintenance period.

Network Maintenance

The USPTO will perform network maintenance on multiple nights beginning at 11:59 p.m., Wednesday, July 17 and ending at 5 a.m., Friday, July 19 ET.

The maintenance will occur on the following nights and times:

  • Beginning at 11:59 p.m., Wednesday, July 17 and ending at 5 a.m., Thursday, July 18 ET.
  • Beginning at 11:59 p.m., Thursday, July 18 and ending at 5 a.m., Friday, July 19 ET.


During the maintenance periods, access to and the following USPTO public online payment systems may be intermittent:

  • Electronic Filing System (EFS-Web & EFS-Web Contingency)
  • Electronic System for Trademark Trials and Appeals (ESTTA)
  • Electronic Trademark Assignment System (ETAS)
  • Patent Maintenance Fees Storefront
  • Patent Trial and Appeal Board End to End (PTAB E2E)
  • Trademark Electronic Application System (TEAS)

TEAS and TEASi System Maintenance

The USPTO will perform maintenance on the Trademark Electronic Application System (TEAS) and Trademark Electronic Application System International (TEASi) beginning at 12:01 a.m., Saturday, August 3 ending at 8 a.m., Saturday, August 3 ET.

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

You should file all saved forms and e-signature forms by 11:59 p.m. ET on Friday, August 2. If you don’t file these forms by that time, you will have to start the process again with new forms. We apologize for the inconvenience.

You can read the release highlights related to this maintenance on our TEAS and TEASi Maintenance and Enhancement page.