Patents by Inventor Charles H. Gnehm

Charles H. Gnehm 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).

  • Recreational structure
    Patent number: D245435
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: August 16, 1977
    Inventor: Charles H. Gnehm
  • Toy vehicle
    Patent number: D247132
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 31, 1978
    Inventor: Charles H. Gnehm