Patents by Inventor Donn A. Byrnes

Donn A. Byrnes 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: 4679812
    Abstract: An apparatus for simplifying the launching and retrieval of a boat from its trailer is provided. The apparatus includes a longitudinal body, an electrical or manual winch, a coupler for mounting to the trailer hitch ball on the towing vehicle, a trailer hitch ball for coupling the boat trailer to the apparatus and a locking assembly to secure the apparatus to the boat trailer structure.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: July 14, 1987
    Inventor: Donn A. Byrnes