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Extract from the Register of European Patents

EP About this file: EP0308244

EP0308244 - Optical filter coupler [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  25.01.1994
Database last updated on 06.07.2024
Most recent event   Tooltip25.01.1994Application deemed to be withdrawnpublished on 16.03.1994 [1994/11]
Applicant(s)For all designated states
Seiko Instruments Inc.
31-1, Kameido 6-chome Koto-ku
Tokyo 136 / JP
For all designated states
Morishita, Katsumi
c/o Osaka Electric & Communication University 18-8 Hatsumachi Neyagawa-shi
Osaka / JP
[N/P]
Former [1989/12]For all designated states
SEIKO INSTRUMENTS INC.
31-1, Kameido 6-chome Koto-ku
Tokyo 136 / JP
For all designated states
Morishita, Katsumi
c/o Osaka Electric & Communication University 18-8 Hatsumachi
Neyagawa-shi Osaka / JP
Inventor(s)01 / Morishita, Katsumi
c/o Osaka Electric & Communication University
18-8 Hatsumachi Neyagawa-shi Osaka / JP
02 / Takesue, Toshiharu
c/o Seiko Instruments Inc. 31-1 Kameido 6-chome
Koto-ku Tokyo / JP
[1989/12]
Representative(s)Miller, Joseph, et al
J. MILLER & CO. 34 Bedford Row, Holborn
London WC1R 4JH / GB
[1991/34]
Former [1989/12]Caro, William Egerton
J. MILLER & CO. Lincoln House 296-302 High Holborn
London WC1V 7JH / GB
Application number, filing date88308593.816.09.1988
[1989/12]
Priority number, dateJP1987023188316.09.1987         Original published format: JP 23188387
[1989/12]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0308244
Date:22.03.1989
Language:EN
[1989/12]
Type: A3 Search report 
No.:EP0308244
Date:16.08.1990
Language:EN
[1990/33]
Search report(s)(Supplementary) European search report - dispatched on:EP26.06.1990
ClassificationIPC:G02B6/28
[1989/12]
CPC:
G02B6/29332 (EP,US); G02B6/125 (EP,US)
Designated contracting statesDE,   FR,   GB [1989/12]
TitleGerman:Wellenlängen selektiver optischer Richtkoppler[1989/12]
English:Optical filter coupler[1989/12]
French:Coupleur optique sélectif en longueur d'onde[1989/12]
File destroyed:15.01.2000
Examination procedure28.12.1990Examination requested  [1991/10]
21.07.1992Despatch of a communication from the examining division (Time limit: M06)
26.01.1993Reply to a communication from the examining division
03.03.1993Despatch of a communication from the examining division (Time limit: M06)
14.09.1993Application deemed to be withdrawn, date of legal effect  [1994/11]
18.10.1993Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1994/11]
Fees paidRenewal fee
26.09.1990Renewal fee patent year 03
26.09.1991Renewal fee patent year 04
30.09.1992Renewal fee patent year 05
Penalty fee
Additional fee for renewal fee
30.09.199306   M06   Not yet paid
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Documents cited:Search[X]EP0037793  (POLAROID CORP [US]);
 [X]FR2506954  (CENTRE NAT RECH SCIENT [FR])
 [A]  - FREQUENZ, vol. 37, no. 9, September 1983, pages 226-231, Berlin, DE; T. SCHWANDER et al.: "Rechnergesteuerte Herstellung von Gradientenfaser-Richtkopplern für bidirektionale Nachrichtenübertragung"
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.