Patents by Inventor Nick Petropoulos

Nick Petropoulos 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).

  • Solid state watch with single time and date selector button
    Patent number: 4083175
    Abstract: A solid state watch in which the computed time and date values are selectively displayed by actuating a single switch. This and a setting mode switch are the only switches required for performing the multiple functions of setting individually the hours, minutes, seconds, day and month, and of selecting the time and calendar date information to be displayed.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: April 11, 1978
    Assignee: Frontier Manufacturing, Inc.
    Inventors: Nick Petropoulos, William G. Holt