Communication aid means and method
Patent 4333092 Issued on June 1, 1982. Estimated Expiration Date: 
July 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1984599 2154478 2376278 2500507 2536290 3751825 InventorApplicationNo. 06/168601 filed on 07/14/1980US Classes:340/815.53, Lighted alphanumeric or character indicator matrix340/286.01, SYSTEMS340/815.55, Transparent or translucent indicator with means for blocking light345/168, Including keyboard434/112COMMUNICATION AIDS FOR THE HANDICAPPEDExaminersPrimary: Caldwell, Sr., John W.Assistant: Myer, Daniel Attorney, Agent or FirmInternational ClassG09B 21/00 (20060101)AbstractApparatus 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.Other References
Field of SearchSignal light systems | |
