Patents by Inventor Roy R. Cunningham

Roy R. Cunningham 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: D290588
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: June 30, 1987
    Inventor: Roy R. Cunningham
  • Patent number: D291186
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: August 4, 1987
    Inventor: Roy R. Cunningham
  • Patent number: D291290
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: August 11, 1987
    Inventor: Roy R. Cunningham