Patents by Inventor Harold E. Charles

Harold E. Charles 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).

  • Utility sled
    Patent number: D293309
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: December 22, 1987
    Inventors: James R. Robertson, Harold E. Charles