Patents by Inventor Prentiss D. Hambright

Prentiss D. Hambright 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).

  • Tractor towing apparatus
    Patent number: 5215425
    Abstract: A dolly and a hitch attachment for towing of a tractor vehicle such as a backhoe. The hitch attachment is tied to the front of the tractor vehicle and then connected by a ball and socket type of hitch to the towing vehicle. The tractor vehicle is also fixedly mounted on a dolly with the rear wheels of the tractor vehicle located forward of the towing wheels on the dolly.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: June 1, 1993
    Inventor: Prentiss D. Hambright