EP0244044A3
Acoustic filter
Abstract
Il comprend un corps (2a) présentant un orifice d'entrée et un orifice de sortie (5), un tube (7) percé d'orifices reliant l'entrée à la sortie du corps (2a) et destiné à la circulation d'un liquide, une vessie (9) réalisée en une matière souple et déformable, ladite vessie (9) entourant le tube (7) et délimitant une chambre externe pour un gaz sous pression. Un ensemble diffuseur est monté autour du tube (7), ledit ensemble diffuseur étant réalisé en un matériau souple voisin de celui de la vessie et comportant des orifices ayant une section de passage importante relativement à celle des orifices du tube (7).
Term
Term ended
Projected expiry passed 27 July 2004, 22.2 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| US2760518A | Cites | United States of America | X | Search report |
| US2764537A | Cites | United States of America | A | Search report |
| US2874721A | Cites | United States of America | A | Search report |
| US3115162A | Cites | United States of America | X | Search report |
| US3741250A | Cites | United States of America | X | Search report |
| US3744527A | Cites | United States of America | A | Search report |
| FR942447A | Cites | France | A | Search report |
5 priority claims, no other members on record
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 8312895 | France | A | |
| 8312895 | France | – | |
| 8312895 | – | – | – |
| EP84401586 | – | – | – |
| FR19830012895 | – | – | – |
29 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Be: lapsedLapsedBERE | BERE | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Gb: translation of ep patent filed (gb section 77(6)(a)/1977)GBT | GBT | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Corresponds to:REF | REF | EP | |
| Divisional application: reference to earlier applicationAC | AC | EP | |
| Designated contracting statesAK | AK | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Divisional application: reference to earlier applicationAC | AC | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0244044
- Publication, DOCDB
- 0244044
- Publication, EPODOC
- EP0244044
- Application
- 87201090
- Application, DOCDB
- 87201090
- Application, EPODOC
- EP19870201090
Titles3
- English
- ACOUSTIC FILTER
- French
- Filtre acoustique
- German
- Akustisches Filter
Classification
- CPC, 8
- F15B1/08
- F15B1/165
- F15B2201/205
- F15B2201/3151
- F15B2201/3152
- F15B2201/411
- F15B2201/415
- F15B2201/43
- IPC, 2
- F15B1 08
- F15B1 16
Designated states1
- Contracting states, 1
- Liechtenstein