Patents by Inventor David J. Bohnen

David J. Bohnen 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).

  • Slidably lockable bracket
    Patent number: 5024409
    Abstract: A slidably lockable bracket having two levels and a keyhole aperture with a slot running from the upper level to the lower level and an enlarged aperture at the end of the slot at the upper level. A sliding member having a post and an enlarged head is engaged and locked in the bracket by inserting the head through the enlarged aperture, sliding the post along the slot, and dropping the head in the lower portion, thereby locking the head on the lower level. Preferably the lower level is configured to retain the head.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: June 18, 1991
    Inventor: David J. Bohnen
  • Fireplace heat amplifier
    Patent number: D250038
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: October 24, 1978
    Inventor: David J. Bohnen