Patents by Inventor Larry W. Griffin

Larry W. Griffin 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: 6820888
    Abstract: The present invention discloses an alignment guide for trailer hitches for a person backing a vehicle having thereon a trailer hitch ball into proper alignment with the tongue and trailer hitch socket of a trailer. The present invention comprises a telescopic guide post for attachment onto the top of the hitch socket on the tongue of the trailer. A receiver, having a mounting base and a “Y” member, is provided for magnetic attachment to the rear of the backing vehicle. The base of the “Y” of the receiver member contacts the telescopic upright member to inform the driver of the vehicle that the ball of the hitch is directly under the socket on the tongue of the trailer.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: November 23, 2004
    Inventor: Larry W. Griffin