Patents by Inventor Gilbert A. Dewing

Gilbert A. Dewing 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).

  • Sandbox backhoe toy
    Patent number: D321380
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: November 5, 1991
    Inventor: Gilbert A. Dewing