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US 6,115,597 AGranted
Disposal emergency cellular phone
OwnerBraden W. Kroll, Mark W. Krollinventors
Life of this patent
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Abstract
The present invention teaches an economical disposable emergency cellular phone. A further object of the invention is a new technique for having a large number of cellular phones share the same small group of access numbers and serial numbers in order to reduce the monthly charges to zero for the end consumer.
Claims4
A method of operating a system of disposable cell phones through the use of dedicated numbers comprising the steps of the phone registering with the use of a first phone number and serial number and proceeding to use the further numbers if that registration is not successful.
Dependencies are inferred from the claim text.