Patents by Inventor Sidney Barzman

Sidney Barzman 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).

  • Automatic telephone call computer and display
    Patent number: 4091238
    Abstract: Equipment for calculating and displaying the cost of a telephone call while it is in progress is disclosed which includes circuitry for defining the relative location of the caller and the person being called, determining the initial and overtime intervals for such call and determining the rate structure for such call.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: May 23, 1978
    Assignee: Beacon Computer Corp.
    Inventors: Ira Samuels, Sidney Barzman