Patents by Inventor Vernon Heitfield

Vernon Heitfield 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: 4070065
    Abstract: A molded plastic wheel is formed with a thin annular groove extending inwardly from its outboard end so as to provide a resiliently yieldable, radially thin peripheral tread portion backed up by a thick relatively rigid band of material on the radially inward side of the groove.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: January 24, 1978
    Inventor: Vernon Heitfield