Patents by Inventor John A. Gefroh

John A. Gefroh 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: 4793626
    Abstract: The trailer hitch comprises a channel-shaped body having a bottom wall containing therein two longitudinally offset holes and an elongated slot located forwardly of said holes. Associated with the slot is a trigger mechanism that can be rotated into a perpendicular relationship with the bottom wall of the channel-shaped body so as to flex a resilient strip downwardly. The resilient strip has mounted thereon a U-shaped rod that provides a pair of pins that project upwardly from the upper side of said strip, the pins being aligned with the holes in the bottom wall.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: December 27, 1988
    Inventor: John A. Gefroh