USPTO Systems Status and Availability
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

Thursday Aug 10, 2017


There is no current status at this time.

Planned Events

Friday Aug 18, 2017


AIW Maintenance

The USPTO will perform maintenance on the Application Images on the Web (AIW) beginning at 6 p.m., Sunday, August 20 and ending at 12 a.m., Monday, August 21 ET.

During the maintenance period, users may experience intermittent disruption of access to image files.

Maintenance Impacting Patents Online Filing, EFS-Web/EFS-Web Contingency, and Patent Maintenance Fees Storefront

The USPTO will perform systems maintenance beginning at 10 p.m. Saturday, August 19 and ending at 3 a.m. Sunday, August 20 ET. 

The maintenance is not expected to cause an outage to Patents Online Filing or to the Patent Maintenance Fees Storefront. The maintenance may, however, cause momentary outages to Patents Online Filing and the Patent Maintenances Fees Storefront during the maintenance period. The Patent Maintenance Fees Storefront may be temporarily unavailable to customers for querying patents, submitting bulk payments, or paying patent maintenance fees during the maintenance period.

During the maintenance period, the following submission types may be unavailable in EFS-Web and EFS-Web Contingency:

1) New 371 National Stage filing
2) Any follow-on submissions to an existing application (e.g., ePetitions, eTerminal Disclaimer, Corrected Web ADS, Web 85b, PG Pub Request)

Alternative filing instructions and payment options are provided below in the event of an unanticipated outage.

For Patent Customers:

For more information about filing documents during an outage, please visit

If you have questions, please contact the EBC (Patent Electronic Business Center) at 1-866-217-9197, Monday through Friday from 6AM - Midnight ET, or email

For PTAB Customers:

If your deadline is today for the petition filing and/or other associated documents to a pending AIA case and you cannot file electronically via the Patent Trial and Appeal Board End-to-End System (PTAB-E2E), you may use an alternative filing method. Please visit the PTAB-E2E FAQ page ( and see A2 for information concerning your AIA petition filing and/or document filing using PTAB-E2E alternative filing methods. If you have any questions, contact PTAB during normal business hours of 8:30 a.m. to 5 p.m. ET by telephone at 571-272-7822 or email at

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