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Nonreusable cellular telephone and method of making cellular telephone calls

  • US 6,332,074 B1
  • Filed: 05/04/2000
  • Issued: 12/18/2001
  • Est. Priority Date: 12/29/1995
  • Status: Expired due to Fees
First Claim
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1. A method of making a plurality of phone calls using a cellular phone which is nonresettable and permanently rendered inoperative after the expiration of a predetermined period of calling time, the cellular phone comprising a preprogrammed one-time predetermined period of calling time deductible from the cellular phone during cellular communications and a microprocessor operative to control the operation of the cellular phone, said method comprising:

  • (a) conducting first cellular communications with the cellular phone for a limited duration less than said predetermined period of calling time;

    (b) automatically deducting a first amount of calling time from said predetermined period of calling time corresponding to the duration of said first cellular communications such that the user can make one or more additional calls without regard to when said first cellular communications was made and until said predetermined period of calling time is used up;

    (c) conducting additional cellular communications with the cellular phone;

    (d) automatically deducting an additional amount of calling time from said predetermined period of calling time corresponding to the duration of the additional cellular communications; and

    (e) repeating steps (c) and (d) until said predetermined period of calling time is used up and, at such time, permanently disabling the cellular phone such that it is permanently rendered inoperative and incapable of any further use.

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