Patents by Inventor John Rovtar

John Rovtar 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).

  • Window shim
    Patent number: 6826878
    Abstract: A threaded collar is rotatably, axially extended to the inner surface of an opening in a wall for receiving a window, from a collar that is fixedly mounted in the window's jamb, and the rotatable collar is fastened to the inner surface by a screw that extends axially through the rotatable collar.
    Type: Grant
    Filed: June 15, 2002
    Date of Patent: December 7, 2004
    Inventor: John Rovtar