USPTO Systems Status and Availability
USPTO Systems Status and Availability
Thursday Nov 15, 2012

PRPS and AOTW Maintenance

PRPS Maintenance

USPTO will be deploying an upgrade to Patent Review Process System (PRPS)  12:01-5:30 a.m. Saturday, November 17.

PRPS will not be available during the upgrade period.

AOTW Maintenance

USPTO will be performing system  maintenance on Assignments On The Web (AOTW) 12:01-5 a.m. Sunday, November 18.

During this maintenance, AOTW ( and the assignment data in Trademark Status and Document Retrieval (TSDR) will not be available.

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