Patents by Inventor Thomas V. Marks

Thomas V. Marks 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: 5839744
    Abstract: The present invention comprises a vehicle towing hitch having a hollow polygonal tubular section with opposing ends and multiple side walls surrounding the hollow portion. Different size towballs are mounted on the radially outward side of at least three of the side walls and a vehicle mounting fixture is provided for connection between a vehicle and the tubular section. Co-operating means of rotatable attachment are located between the mounting fixture and the tubular sections with spring loaded means for releasably holding the mounting fixture and the tubular section in a fixed position one to the other. A pintle hook is mounted on a pintle block with co-operating elements of telescopic engagement between the pintle block and the tubular section.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: November 24, 1998
    Inventor: Thomas V. Marks