Patents by Inventor Paul D. Haddock

Paul D. Haddock 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).

  • Detachable trailer hitch
    Patent number: 4333665
    Abstract: A detachable trailer hitch adapted to be removably interposed between a pair of in-line boat trailers, or the like, and comprising a frame having a first section for connection with the trailing end of the first trailer, a second section of relatively large substantially triangular configuration for surrounding the motor of the boat carried by the first trailer, and a hitch element disposed outboard of the triangular section for removable connection with the hitch member of the second or in-line trailer.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: June 8, 1982
    Inventor: Paul D. Haddock