Patents by Inventor Max N. Field

Max N. Field 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).

  • Patent number: 4333092
    Abstract: Apparatus and method for communicating comprises a control box having an alphanumeric keyboard with a plurality of switches. A control box electronic circuitry is disposed within the control box and has a power source and a plurality of conductors. The apparatus also includes a display box for displaying what's on the alphanumeric keyboard, and a display box electronic circuitry which is disposed within the display box. Communication with a mute is accomplished by working the keyboard and thereby lighting up in the display box a numeral and corresponding hand sign, or a letter and corresponding hand sign, and with the mute watching the display communication with him or her is accomplished.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: June 1, 1982
    Inventor: Max N. Field