Friday, December 24, 2021 will be a federal holiday in the District of Columbia. This means the USPTO will be closed that day. This means that any action that might be due at the USPTO on December 24 or December 25 or December 26 will be timely if accomplished by Monday, December 27, 2021.
Friday, December 31, 2021 will be a federal holiday in the District of Columbia. This means the USPTO will be closed that day. This means that any action that might be due at the USPTO on December 31 or January 1 or January 2 will be timely if accomplished by Monday, January 3, 2022.