Patents by Inventor Michael E. Heithe

Michael E. Heithe 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).

  • Door lock arrangement
    Patent number: 5941581
    Abstract: A door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a bidirectional retraction assembly, whereby rotation of the door handle in either direction moves the deadbolt from the extended position to the retracted position.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 24, 1999
    Assignee: NT Falcon Lock
    Inventor: Michael E. Heithe
  • Pull and latch guard
    Patent number: D375671
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: November 19, 1996
    Assignee: NT Quality Hardware
    Inventor: Michael E. Heithe
  • Pull and latch guard
    Patent number: D405346
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: February 9, 1999
    Assignee: NT Falcon Lock
    Inventor: Michael E. Heithe
  • Door pull
    Patent number: D411092
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: June 15, 1999
    Assignee: Triangle Brass Manufacturing Company, Incorporated
    Inventor: Michael E. Heithe
  • Combined door pull and latch guard
    Patent number: D417833
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: December 21, 1999
    Assignee: NT Quality Hardware
    Inventor: Michael E. Heithe
  • Flush pull
    Patent number: D419051
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: January 18, 2000
    Assignee: NT Quality Hardware
    Inventor: Michael E. Heithe