PKI authentication for EFS-Web and Private PAIR will be unavailable on May 22, starting at 12:01 AM and ending at 11:59 PM (ET). Additional outages will be scheduled. Authentication via verified USPTO.gov accounts will continue to be available. Please see the USPTO Systems Status and Availability pagefor more information.
EFS-Web, Private PAIR, and Public PAIR will be unavailable beginning at 11:59 p.m., Friday, May 24th, and ending at 5:00 p.m., Monday, May 27th ET. Please visit USPTO Systems Status and Availability for more information. If you have questions, please contact the EBC at (866) 217-9197 or firstname.lastname@example.org.