Patents by Inventor Patrick T. Doherty

Patrick T. Doherty 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: 6722721
    Abstract: A fold up ramp assists the loading and unloading of equipment and people onto and off of the bed of a pickup truck. Four individual panels are configured with a unique folding pattern that allows two of the panels to fold into two of the other panels, or nest, to form the tailgate on a pickup truck. The folded and nested panel tailgate is exactly the same size as a standard pickup truck tailgate, varying according to vehicle make and model, and utilizes the same latching mechanism. The ramp panels are fabricated of rectangular metal tubing frames having a metal meshing topside. The panels are interconnected by piano hinges fastened to the underside shared edges between the panels and running the full length of the edge to increase stability and strength.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 20, 2004
    Inventors: Earl W. Sherrer, Patrick T. Doherty
  • Publication number: 20040032142
    Abstract: A fold up ramp assists the loading and unloading of equipment and people onto and off of the bed of a pickup truck. Four individual panels are configured with a unique folding pattern that allows two of the panels to fold into two of the other panels, or nest, to form the tailgate on a pickup truck. The folded and nested panel tailgate is exactly the same size as a standard pickup truck tailgate, varying according to vehicle make and model, and utilizes the same latching mechanism. The ramp panels are fabricated of rectangular metal tubing frames having a metal meshing topside. The panels are interconnected by piano hinges fastened to the underside shared edges between the panels and running the full length of the edge to increase stability and strength.
    Type: Application
    Filed: June 6, 2002
    Publication date: February 19, 2004
    Inventors: Earl W. Sherrer, Patrick T. Doherty