EP0804048A3
Loudspeaker
Abstract
According to the invention, a loudspeaker (10) is specified which has at least one radially magnetized permanent magnet (12) and whose receptacle (11) is formed from a para or diamagnetic material. Such speakers (10) can be made very simple and compact. By appropriate refinements of the stray flux of radially magnetized permanent magnet (12) using speakers (10), it is possible to easily produce deflections of two membranes (13, 13 ') with identical playback frequencies.
Term
Term ended
Projected expiry passed 3 April 2017, 9.5 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both waysCites: the store holds 2 of 3
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| DE2709972A1 | Cites | Germany | A | Search report | 1,6-8 |
| US3679833A | Cites | United States of America | A | Search report | 1,4,5,7 |
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 016 (E - 872) 12 January 1990 (1990-01-12) | Non-patent | – | – | Search report | – |
10 members in 4 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 19616794 | Germany | A | |
| 19616794 | Germany | – | |
| 19616794 | – | – | – |
| DE1996116794 | – | – | – |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| EP0804048A2 | European Patent Office (EPO) | A2 | |
| DE19616794A1 | Germany | A1 | |
| US2001043715A1 | United States of America | A1 | |
| US6359997B2 | United States of America | B2 | |
| EP0804048A3This record | European Patent Office (EPO) | A3 | |
| DE19616794B4 | Germany | B4 | |
| EP0804048B1 | European Patent Office (EPO) | B1 | |
| AT413081T | Austria | T | |
| ATE413081T1 | Austria | T1 | |
| DE59712977D1 | Germany | D1 |
34 legal events, as 4 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 | |
| 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 | |
| Notification of lapseLapsedST | ST | FR | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| 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 | |
| Fee paymentPLFP | PLFP | FR | |
| 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 | |
| Be: lapsedLapsedBERE | BERE | 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents actLapsedNLV1 | NLV1 | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedNOT ENGLISHFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | 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
- 0804048
- Publication, DOCDB
- 0804048
- Publication, EPODOC
- EP0804048
- Application
- 97105524
- Application, DOCDB
- 97105524
- Application, EPODOC
- EP19970105524
Titles3
- German
- Lautsprecher
- English
- Loudspeaker
- French
- Haut-parleur
Classification
- CPC, 3
- H04R9/063
- H04R9/025
- H04R2209/022
- IPC, 2
- H04R9 02
- H04R9 06
Designated states1
- Contracting states, 1
- Netherlands (Kingdom of the)