USPTO Systems Status and Availability

Thursday Feb 01, 2024

Planned Events

​​Patent Trial and Appeal Case Tracking System (P-TACTS) Maintenance

The USPTO will perform routine maintenance on (P-TACTS) systems for two consecutive nights.

The first night of maintenance will occur from 12:01 a.m. until 5:30 a.m. on Thursday, February 1 ET.

The final night of maintenance will occur from 12:01 a.m. until 5:30 a.m. on Friday, February 2 ET.

P-TACTS will be unavailable during the maintenance period.

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

Parties must either pay fees for petitions outside of this scheduled maintenance time or pay early. Those with deadlines for petition filing or other associated documents to a pending AIA case, must use an alternate filing method.

If you have questions, please contact PTAB 8:30 a.m. to 5 p.m. ET at 571-272-9797 weekdays or email Trials@uspto.gov.

Electronic Patent Assignments System (EPAS) and Electronic Trademark Assignments System (ETAS) Maintenance

The USPTO Certified Copy and Assignments (CC&A) Product team will replace the EPAS and ETAS systems with IPAS (Assignment Center), from 9 a.m. until 11 p.m. on Friday, February 2 ET.

During the maintenance period and after, the EPAS and ETAS products will not be available. Please use the new product at: https://assignmentcenter.uspto.gov. 

Content Management System (CMS) Maintenance

The USPTO will perform routine system maintenance for CMS beginning at 12:01 a.m. until 5:30 a.m. on Thursday, February 1 ET. 

During the maintenance period, users may not be able to submit, view, download or update Patent documents using the below systems:

    • Sequence Listing Information Control (SLIC)

    • Docket and Application Viewer (DAV)

    • Official Correspondence (OC)

    • Patent Application Locating and Monitoring Patent Cooperation Treaty Operations (PCT-OPS)

    • Patent Application Services and Security (PASS)

    • Event-Hub

    • Office Action Conversion to XML4IP 3.0 (OA2XML)

    • Patent Trial and Appeal Case Tracking System (P-TACTS)

    • Certified Copy Center (CCC)

If interruption occurs while viewing, downloading, or saving a Patent Document, please retry after maintenance hours.

Patent Center: Previously submitted documents will not be available at the Patent Center’s Documents and Transactions tab during the maintenance period. New documents submitted via Patent Center during the maintenance period will experience longer than expected delays in becoming available in the Patent Center’s Documents and Transactions tab. Customers should check back on regular business hours of Thursday, February 1 to see if the impacted submissions are available at Patent Center.

Services - Document Wrapper for Patents (S-DWP) Maintenance

The USPTO will perform routine maintenance on Services - Document Wrapper for Patents (S-DWP) for two consecutive nights. The dates are as followed:

    • The first night of maintenance will be from 12:01 a.m. until 5:30 a.m. on Friday, February 2 ET.

    • The final night of maintenance will be from 12:01 a.m. until 5:30 a.m. on Sunday, February 4 ET.

S-DWP will be available during the maintenance period; however, some operations may be briefly interrupted or delayed.

Electronic Library for Patents (P-ELP) Maintenance

The USPTO will perform routine maintenance on P-ELP for two consecutive nights. 

The beginning night of maintenance will occur from 12:01 a.m. until 5:30 a.m., Friday, February 2 ET.

The final night of maintenance will occur from 12:01 a.m. until 5:30 a.m., Sunday, February 4 ET.

P-ELP will be available during the maintenance period; however, some operations may be briefly interrupted or delayed.

Patent Center users should retry if an operation is interrupted or does not appear to have been completed.

Publication Site for Issued and Published Sequences (PSIPS) Maintenance

The USPTO will perform routine maintenance on PSIPS beginning at 11:59 p.m., Friday, February 2 and ending at 5 a.m., Saturday, February 3 ET.

Multiple System Maintenance

The USPTO will perform routine maintenance on Electronic System for Trademark Trials and Appeals (ESTTA) system and Trademark Trial and Appeal Board Inquiry System (TTABVUE) system from 12:01 a.m. until 5 a.m., Saturday, February 3 ET.

ESTTA and TTABVUE will be unavailable during the maintenance period.

Trilateral Document Access (TDA) Maintenance

The USPTO will perform maintenance affecting TDA Access beginning at 5 p.m., Monday, February 5 and ending at 5 a.m., Tuesday, February 6 ET.

During the maintenance period, the TDA system may not be unavailable.