Wireless telephone system
Abstract
A wireless telephone communication system for wireless, voice, data or voice and data terminals comprising apparatus at a central location for receiving one or a plurality of signals for communication with selected ones of wireless communication terminals, apparatus for converting the signals to spread spectrum radio frequency signals, a leaky transmission line located in a communication region, apparatus for applying the spread spectrum radio frequency signals to the transmission line for electromagnetic radiation within the region, at least one wireless communication terminal adapted to receive a predetermined one of the spread spectrum radio frequency signals and for demodulating it into an intelligible signal.
Term
Term ended
Expired 17 October 2008, 17.9 years ago.
- Priority
- Filed
- Granted
- Expired
- Today
20 members in 9 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 8502735 | United Kingdom | A | |
| 499189 | Canada | A |
Members20
| Document | Office | Kind | |
|---|---|---|---|
| IT8619247D0 | Italy | D0 | |
| CN86101271A | China | A | |
| IE860289L | Ireland | L | |
| FR2577090A1 | France | A1 | |
| DE3603347A1 | Germany | A1 | |
| GB2171576A | United Kingdom | A | |
| JPS61234135A | Japan | A | |
| IT8619247A1 | Italy | A1 | |
| IT1188611B | Italy | B | |
| GB8822635D0 | United Kingdom | D0 | |
| CA1247266A | Canada | A | |
| CA1247266A1 | Canada | A1 | |
| GB2208778A | United Kingdom | A | |
| GB2208778B | United Kingdom | B | |
| GB2171576B | United Kingdom | B | |
| US4866732A | United States of America | A | |
| CA1261981A | Canada | A | |
| CA1261981CThis record | Canada | C | |
| CA1261981CThis record | Canada | C | |
| US5005183A | United States of America | A |
4 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| ExpiryMKEX | MKEX | |
| ExpiryMKEX | MKEX | |
| ExpiryMKEX | MKEX | |
| ExpiryMKEX | MKEX |
Numbers
- Application
- 580344
Titles
- English
- RADIO TELEPHONE SYSTEM
Classification
- CPC, 4
- H04B5/48
- H04B1/69
- H04J13/0022
- H04B5/28
- IPC, 1
- H04M7 00