Patents by Inventor Harlan Martin

Harlan Martin 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: 6290023
    Abstract: A system and apparatus for converting a trailer to an observation stand. The sports utility trailer has a chassis frame hingeably connected to a tailgate platform. At least one wheel on the bottom of the chassis frame supports the chassis frame above the ground when the sports utility trailer is a trailer. A ladder mounts to the chassis frame to provide access from one end of the chassis frame to the other when the frame is supported in an upright position where one end is raised substantially higher than the opposing end of the frame. A tongue guide is mounted to the front end of the frame to support a conventional ball hitch socket for towing or transporting the sports utility trailer behind a vehicle. Removable legs from the chassis frame mount to the bottom side of the tailgate platform. When the legs are mounted beneath the tailgate platform, the tailgate platform is raised above the ground so that the legs and the upright chassis frame support the tailgate platform above the ground.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: September 18, 2001
    Inventor: Harlan Martin