Patents by Inventor Selden Levy

Selden Levy 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).

  • Self-correcting answer machine
    Patent number: 4011664
    Abstract: A self-correcting answering machine is provided in which the user is presented with a series of questions having true or false answers. When the user indicates his choice, a right or wrong indication is provided so as to notify the user as to the correctness of his answer.
    Type: Grant
    Filed: August 6, 1975
    Date of Patent: March 15, 1977
    Assignee: Vis-Quiz, Inc.
    Inventors: Myron D. Weisberg, Selden Levy