Patents by Inventor David A. Stark

David A. Stark 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).

  • Credit card imprinter authorization terminal
    Patent number: 4775784
    Abstract: A credit card imprinter authorization terminal (20) including an imprinter device (24), keyboard (26), a display (28), a credit card reader (30), and a printer (32) all contained on a single housing structure (22). The credit card authorization terminal (20) includes a microprocessor (36) and its associated memory (38) for controlling operation of the credit card authorization terminal. The printer (32) provides an automatic printout of credit card transaction related information providing an audit trail for future reference.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: October 4, 1988
    Assignee: Data Card Corporation
    Inventor: David A. Stark