March 2019 | No. 03/2019


United States Patent and Trademark Office: Not Open for Business on 20 February 2019

Because of bad weather conditions, the United States Patent and Trademark Office (USPTO) was not open to the public for the purposes of the transaction of official business on 20 February 2019, which was considered to be a Federal holiday.  Consequently, pursuant to PCT Rule 80.5, if the expiration of any period during which any document or fee in connection with an international application was required to reach the Office fell on that day, that period was extended so as to expire on the next succeeding business day, which was 21 February 2019. 

A notice concerning the Office closure has been published on the USPTO website at:


  • Receive notifications of the latest issue of the PCT Newsletter and other important PCT News 

  • Back to Contents page