Patents by Inventor Hugh E. Mitchell

Hugh E. Mitchell 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: D256398
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: August 12, 1980
    Inventor: Hugh E. Mitchell