Disposal emergency cellular phone

• US 6,115,597 A
• Filed: 07/16/1997
• Issued: 09/05/2000
• Est. Priority Date: 07/16/1997
• Status: Expired due to Fees

• Current Assignee: Braden W. Kroll, Mark W. Kroll
• Original Assignee: Braden W. Kroll, Mark W. Kroll
• Inventors: Kroll, Mark W., Kroll, Braden W.
• Primary Examiner(s): Hudspeth, David R.
• Assistant Examiner(s): Sofocleous, M. David
• Application Number:
  US08/895,358
• Time in Patent Office: 1,147 Days
• Field of Search: 455/404, 455/435, 455/518
• US Class Current: 455/404.1
• CPC Class Codes: H04M 1/677 Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
• CPC Class Codes: H04M 1/72421 with automatic activation of emergency service functions, e.g. upon sensing an alarm
• CPC Class Codes: H04M 1/72424 with manual activation of emergency-service functions
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 17/005 Disposable prepaid communication devices
• CPC Class Codes: H04M 17/026 Constructional features
• CPC Class Codes: H04M 2215/2026 Wireless network, e.g. GSM, PCS, TACS
• CPC Class Codes: H04M 2215/32 Involving wireless systems
• CPC Class Codes: H04W 4/24 Accounting or billing

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.

Claims

1. 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.

2. The method of claim 1 in which further numbers are selected in a fixed sequence.

3. The method of claim 1 in which further numbers are selected in a random fashion.

4. The method of claim 1 with the further step of checking the total time of usage and refusing transmissions beyond that time.