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Extract from the Register of European Patents

EP About this file: EP0239974

EP0239974 - Magneto-optical recording medium [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.08.1992
Database last updated on 13.07.2024
Most recent event   Tooltip13.08.1992No opposition filed within time limitpublished on 30.09.1992 [1992/40]
Applicant(s)For all designated states
NEC HOME ELECTRONICS LTD.
8-17, Umeda, 1-chome Kita-Ku Osaka-Shi
Osaka / JP
[N/P]
Former [1987/41]For all designated states
NEC HOME ELECTRONICS LTD.
8-17, Umeda, 1-chome Kita-Ku
Osaka-Shi Osaka / JP
Inventor(s)01 / Shinichi, Katsuda
NEC Home Electronics Ltd. No. 8-17, Umeda 1-chome
Kita-ku Osaka-shi Osaka / JP
02 / Takayuki, Matsumoto
NEC Home Electronics Ltd. No. 8-17, Umeda 1-chome
Kita-ku Osaka-shi Osaka / JP
[1987/41]
Representative(s)Diehl, Hermann O. Th., et al
Diehl & Partner GbR
Postfach 34 01 15
80098 München / DE
[N/P]
Former [1987/41]Diehl, Hermann O. Th., Dr., et al
Diehl, Glaeser, Hiltl & Partner Patentanwälte Postfach 19 03 65
D-80603 München / DE
Application number, filing date87104694.230.03.1987
[1987/41]
Priority number, dateJP1986007229129.03.1986         Original published format: JP 7229186
JP1986022905227.09.1986         Original published format: JP 22905286
JP1986022905327.09.1986         Original published format: JP 22905386
[1987/41]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0239974
Date:07.10.1987
Language:EN
[1987/41]
Type: A3 Search report 
No.:EP0239974
Date:20.07.1988
Language:EN
[1988/29]
Type: B1 Patent specification 
No.:EP0239974
Date:09.10.1991
Language:EN
[1991/41]
Search report(s)(Supplementary) European search report - dispatched on:EP31.05.1988
ClassificationIPC:G11B11/10, G11B13/04
[1988/29]
CPC:
G11B11/10586 (EP)
Former IPC [1987/41]G11B11/10
Designated contracting statesDE,   NL [1987/41]
TitleGerman:Magneto-optisches Aufzeichnungsmedium[1987/41]
English:Magneto-optical recording medium[1987/41]
French:Milieu d'enregistrement magnéto-optique[1987/41]
File destroyed:12.06.1999
Examination procedure19.01.1989Examination requested  [1989/13]
18.04.1990Despatch of a communication from the examining division (Time limit: M04)
24.08.1990Reply to a communication from the examining division
16.10.1990Despatch of communication of intention to grant (Approval: Yes)
04.03.1991Communication of intention to grant the patent
05.06.1991Fee for grant paid
05.06.1991Fee for publishing/printing paid
Opposition(s)10.07.1992No opposition filed within time limit [1992/40]
Fees paidRenewal fee
31.03.1989Renewal fee patent year 03
19.02.1990Renewal fee patent year 04
07.02.1991Renewal fee patent year 05
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Documents cited:Search[XP]  - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 152 (P-462)[2208], 3th June 1986; & JP - 61 005 450 (MATSUSHITA DENKI SANGYO K.K.) 11-01-1986
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 9, no. 296 (P-407)[2019], 22th November 1985; & JP - 60 131 659 (RICOH K.K.) 13-07-1985
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 9, no. 269 (P-400)[1992], 26th October 1985; & JP - 60 115 037 (RICOH K.K.) 21-06-1985
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.