Patents by Inventor Jack R. Campbell

Jack R. Campbell 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: 4054302
    Abstract: A trailer hitch guide intended for use in assisting the driver of an automotive vehicle to align, for hitching purposes, a trailer hitch ball, of the type conventionally carried by an automobile or other automotive hauling vehicle, with a trailer hitch socket, of the type conventionally carried on the tongue of a trailer, the guide being comprised of a pair of identical, highly visible and electrically lightable guide members, one of the guide members being adapted to be temporarily attached to the trailer tongue while the other guide member is adapted to be temporarily attached to the rear of the hauling vehicle whereby both guide members are highly visible through the rear window of the vehicle, during dim lighting conditions and at night as well as during daylight hours, to a vehicle driver seated in the driver's seat during the aligning operation.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: October 18, 1977
    Inventor: Jack R. Campbell