Patents by Inventor Peter Mitchell Crawford

Peter Mitchell Crawford 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).

  • Eraser
    Patent number: D489409
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: May 4, 2004
    Inventors: Peter Mitchell Crawford, Andrew Stewart Dykes