Patents by Inventor William Sherbrooke Roberts

William Sherbrooke Roberts 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).

  • Charge card
    Patent number: 6025283
    Abstract: A charge card is described which is made from a rubber or plastic laminate with precious metal forming the upper surface and preferably lower surface. The precious metal layers are adhered to the rubber material by means of a suitable adhesive formulation or the plastic materially a latex adhesive. The laminated card has uniquely flexible properties which render it suitable as a credit card.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: February 15, 2000
    Assignee: The Real Gold Card Company Limited
    Inventor: William Sherbrooke Roberts