Patents by Inventor Russell E. Uppstrom

Russell E. Uppstrom 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).

  • Hinge system
    Patent number: 5001863
    Abstract: A hinge system including a door and a frame having matching angular edge surfaces and a hinge comprising an L-shaped pintle and an elongated secondary element each having a wood screw thread wherein the pintle has a vertical leg and the secondary element has a bore fitting snugly over the vertical leg and each wood screw thread is secured in a respective angular surface at a right angle thereto.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: March 26, 1991
    Inventor: Russell E. Uppstrom
  • Hinge
    Patent number: 4882809
    Abstract: Hinge consisting of an L-shaped pintle and an elongated secondary element wherein the pintle has a vertical leg and the secondary element has a bore fitting snugly over the vertical leg.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: November 28, 1989
    Inventor: Russell E. Uppstrom