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Telephone in-use indicator system

  • US 6,225,897 B1
  • Filed: 02/25/1998
  • Issued: 05/01/2001
  • Est. Priority Date: 02/25/1998
  • Status: Expired due to Fees
First Claim
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1. A cellular phone in-use indicator system for use on a vehicle, comprising:

  • an in-use signal source operatively coupled to a cellular telephone for generating an in-use signal indicating that said cellular phone is in use;

    a transmitter electrically coupled to said cellular telephone for transmitting said in-use signal by way of a wireless link;

    a receiver disposed away from said cellular phone for receiving said in-use signal from said transmitter; and

    an indicator disposed away from said cellular phone responsive to said receiver receiving said in-use signal for visually indicating that said cellular telephone is in use to persons outside the vehicle while said vehicle is moving.

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