Wireless communication device with replaceable battery and prepaid calling time
US5963859A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Jul 18, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication device is provided which is capable of interfacing with a base station of a service provider and intended for occasional use without requiring a subscription with the service provider. The device uses a non-rechargeable replaceable power source with memory means non-detachably secured to and integral with said power source comprising information code for uniquely identifying said power means and a prepaid calling time period. After the prepaid calling time period of the wireless communication device is exhausted, the power source can be exchanged for a different power source having a new prepaid calling time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.