Patents by Inventor Willard E. Graddy

Willard E. Graddy 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).

  • Push-pull rotary system
    Patent number: 4164633
    Abstract: A push-pull rotary switch for controlling a plurality of lighting circuits on a motor vehicle that includes a longitudinally movable rod adapted to control at least one switch means during its longitudinal movement and an additional switch means when the rod is rotated.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: August 14, 1979
    Assignee: General Motors Corporation
    Inventors: John J. Sheridan, Willard E. Graddy, Willis H. Anderson