blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP0020622

EP0020622 - MEMBRANE FOR ELECTRO ACOUSTIC TRANSDUCER [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  04.02.1981
Database last updated on 19.10.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
Licentia Patent-Verwaltungs-GmbH
Theodor-Stern-Kai 1
60596 Frankfurt / DE
[N/P]
Former [1981/01]For all designated states
Licentia Patent-Verwaltungs-GmbH
Theodor-Stern-Kai 1
D-60596 Frankfurt / DE
Inventor(s)01 / EHMANN, Otto
Lönsweg
D-6951 Billingheim-Katzental / DE
[1981/01]
Application number, filing date79901603.530.11.1979
[1981/01]
WO1979DE00140
Priority number, dateDE1978285174530.11.1978         Original published format: DE 2851745
[1981/01]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report
No.:WO8001230
Date:12.06.1980
[1980/13]
Type: A1 Application with search report 
No.:EP0020622
Date:07.01.1981
Language:DE
The application published by WIPO in one of the EPO official languages on 12.06.1980 takes the place of the publication of the European patent application.
[1981/01]
ClassificationIPC:H04R7/12, H04R7/10
[1981/01]
CPC:
H04R7/04 (EP); H04R7/127 (EP)
Designated contracting statesAT,   CH,   FR,   GB,   LU,   NL,   SE [1981/01]
TitleGerman:MEMBRAN FÜR EINEN ELEKTROAKUSTISCHEN WANDLER[1981/01]
English:MEMBRANE FOR ELECTRO ACOUSTIC TRANSDUCER[1981/01]
French:MEMBRANE POUR TRANSDUCTEUR ELECTROACOUSTIQUE[1981/01]
File destroyed:12.02.1989
Examination procedure22.10.1980Despatch of communication that the application is deemed to be withdrawn, reason: filing fee / search fee not paid in time  [1981/14]
02.01.1981Application deemed to be withdrawn, date of legal effect  [1981/14]
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Cited inInternational search[X]DE533786  ;
 [X]US4112168  ;
 [X]GB1518285  ;
 [X]JPS522427  ;
 DE1227512  [ ]
 [X]  - PATENTS ABSTRACTS OF JAPAN, Band 1, Heft 152, veroffentlicht am 7, Dezember 1977, Seite 8021E77, siehe Abschnitt 2 ubereinstimmend mit JP, A5293317 (5.August 1977).
 [X]  - PATENTS ABSTRACTS OF JAPAN, Band 2, Heft 33, veroffentlicht am 6. Marz 1978, Seite 12463E77, siehe Abschnitt 3, ubereinstimmend mit JP, A, 52154623 (22 Dezember 1977) ubereinstimmend mit US, A4140203 (20. Februar 1979).
 [X]  - PATENTS ABSTRACTS OF JAPAN, Band 2, Heft 20, veroffentlicht am 9. Februar 1978, Seite 11334E77, siehe Abschnitt 1 ubereinstimmend mit JP, A, 52139415 (21. November 1977) ubereinstimmend mit US, A4140203 (20. Februar 1979).
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.