Patents by Inventor Charles G. Curtis

Charles G. Curtis 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: D411019
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: June 15, 1999
    Inventor: Charles G. Curtis