Patents by Inventor Dennis Lindemann

Dennis Lindemann 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).

  • Check processing device
    Patent number: 4933536
    Abstract: A check processing device incorporated in a point of sale terminal comprises a xerographic copier to reproduce an image of personal identification onto the back of a check, an electronic stamping mechanism for imprinting a transaction date, time and number on the back of the check and a scanner which reads and stores a customer's checking account number and controls a cash register according to the validity and presence of the check and the presence of personal identification.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: June 12, 1990
    Assignee: Dennis Lindemann
    Inventors: Dennis Lindemann, John Smith-Hill