Patents by Inventor James W. Rumsey

James W. Rumsey 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).

  • Rough terrain vehicle
    Patent number: 4397473
    Abstract: A rough terrain vehicle has a frame for supporting lading and equipment especially adapted for off-road, rough country use. The frame is supported on four wheels through pivot arms and hydraulically interconnected expansible chambers subject to manual hydraulic control. The vehicle is preferably self-propelled by an engine that also drives the hydraulic mechanism.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: August 9, 1983
    Assignee: The Regents of the University of California
    Inventors: John A. Miles, James W. Rumsey, James J. Mehlschau