Patents by Inventor William F. Johnston

William F. Johnston 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).

  • Magnetic card pay station
    Patent number: D483371
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 9, 2003
    Inventor: William F. Johnston