EP0254591A3
Teleconferencing system teleconferencing system
Abstract
The teleconferencing system includes three or more audiographic teleconferencing terminals where any one of the terminals can act as a sending terminal and/or a receiving terminal during a teleconferencing session. Each terminal includes means for establishing a broadcast and listen protocol that permits a sending terminal to transmit a facsimile image to multiple receiver terminals simultaneously.
Term
Term ended
Projected expiry passed 24 July 2007, 19.2 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both waysCites: the store holds 4 of 5
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0130018A2 | Cites | European Patent Office (EPO) | A | Search report |
| US4258387A | Cites | United States of America | A | Search report |
| US4503468A | Cites | United States of America | A | Search report |
| US4550224A | Cites | United States of America | A | Search report |
4 members in 3 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 890692 | United States of America | – | |
| 89069286 | United States of America | A | |
| 890692 | – | – | – |
| US19860890692 | – | – | – |
Members4
| Document | Office | Kind | |
|---|---|---|---|
| EP0254591A2 | European Patent Office (EPO) | A2 | |
| JPH01105654A | Japan | A | |
| EP0254591A3This record | European Patent Office (EPO) | A3 | |
| US4878242A | United States of America | A |
11 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Application refused18R | 18R | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN REFUSEDSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0254591
- Publication, DOCDB
- 0254591
- Publication, EPODOC
- EP0254591
- Application
- 87306580
- Application, DOCDB
- 87306580
- Application, EPODOC
- EP19870306580
Titles4
- English
- TELECONFERENCING SYSTEM TELECONFERENCING SYSTEM
- German
- Telekonferenzsystem
- English
- Teleconferencing system
- French
- Système de téléconférence
Classification
- CPC, 3
- H04N1/32069
- H04N1/32037
- H04N1/42
- IPC, 3
- H04M9 00
- H04N1 32
- H04N1 42
Designated states13
- Contracting states, 13
- Austria
- Belgium
- Switzerland
- Germany
- Spain
- France
- United Kingdom
- Greece
- Italy
- Liechtenstein
- Luxembourg
- Netherlands (Kingdom of the)
- Sweden