Patents by Inventor Royal J. Harmer

Royal J. Harmer 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: D262957
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: February 9, 1982
    Inventor: Royal J. Harmer