Patents by Inventor Mark K. Thistlethwaite

Mark K. Thistlethwaite has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4048771
    Abstract: A door framing-fixture and method is disclosed. The fixture includes a top member, a bottom member and a pair of opposed side members.The members are connected together to form a rectangular fixture complementary with the interior of a metallic door frame having opposed jambs and a connecting header. Brace members are located adjacent the bottom member and extend rearwardly for connection to the jambs. A cross member extends between the opposed side members. After the fixture is installed in the metallic door frame, the door frame-fixture assembly is positioned at a desired door location and a wall is constructed adjacent the assembly. The wall is connected to the metallic door frame. The fixture is removed from the frame prior to installing a door.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: September 20, 1977
    Assignee: The Vicon Supply Company
    Inventor: Mark K. Thistlethwaite