Patents by Inventor Robert A. Kerby

Robert A. Kerby 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).

  • Anti-vandal credit card gate
    Patent number: 3995728
    Abstract: A vandal-resistant gate which is constructed in such a manner that it only opens wide enough to accommodate a credit card but not coins or other foreign objects. In this manner the gate allows the entry of a credit card but resists the insertion of coins or other objects which would immobilize the machine.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: December 7, 1976
    Assignee: Burroughs Corporation
    Inventor: Robert A. Kerby