Patents by Inventor James E. Ashcroft

James E. Ashcroft 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: D271590
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: November 29, 1983
    Inventor: James E. Ashcroft