Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2004-06-03
2008-11-18
Nguyen, David Q (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S406000, C455S407000, C455S414200, C455S556200, C455S557000
Reexamination Certificate
active
07454232
ABSTRACT:
An integrated prepaid cellular service and telephone unit including a cellular transceiver, a storage unit, a processor; and a credit/debit card interface. In a further aspect, the invention includes code for contacting a cellular provider, transmitting user debit/credit information, receiving a quantity of pre-paid cellular service units, storing the units, and allowing use of the cellular transceiver as long as said units does not equal zero.
REFERENCES:
patent: 5796832 (1998-08-01), Kawan
patent: 5966654 (1999-10-01), Croughwell et al.
patent: 6016476 (2000-01-01), Maes et al.
patent: 6808110 (2004-10-01), Von Brockdorff
patent: 7181429 (2007-02-01), Lee
Fliesler & Meyer LLP
Nguyen David Q
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