Extract from the Register of European Patents

EP About this file: EP0487288

EP0487288 - Synchronous dynamic random access memory [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.12.1996
Database last updated on 28.03.2026
Most recent event   Tooltip19.12.1996No opposition filed within time limitpublished on 05.02.1997 [1997/06]
Applicant(s)For all designated states
Oki Electric Industry Co., Ltd.
7-12, Toranomon 1-chome Minato-ku
Tokyo / JP
[N/P]
Former [1992/22]For all designated states
Oki Electric Industry Co., Ltd.
7-12, Toranomon 1-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Takasugi, Atsushi, c/o Oki Electric Ind. Co., Ltd.
7-12 Toranomon 1-chome, Minato-ku
Tokyo / JP
[1992/22]
Representative(s)Read, Matthew Charles, et al
Venner Shipley LLP
200 Aldersgate
London EC1A 4HD / GB
[N/P]
Former [1992/22]Read, Matthew Charles, et al
Venner Shipley & Co. 20 Little Britain
London EC1A 7DH / GB
Application number, filing date91310630.819.11.1991
[1992/22]
Priority number, dateJP1990031652320.11.1990         Original published format: JP 31652390
[1992/22]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0487288
Date:27.05.1992
Language:EN
[1992/22]
Type: A3 Search report 
No.:EP0487288
Date:21.10.1992
Language:EN
[1992/43]
Type: A1 / A2 RE Reissue of A-publication
No.:EP0487288
Date:01.08.1995
[1995/38]
Type: A1 / A2 RE Reissue of A-publication
No.:EP0487288
Date:22.08.1995
[1995/41]
Type: B1 Patent specification 
No.:EP0487288
Date:07.02.1996
[1996/06]
Search report(s)(Supplementary) European search report - dispatched on:EP02.09.1992
ClassificationIPC:G11C11/408, G11C11/409, G11C11/407
[1992/22]
CPC:
G11C11/4076 (EP,US); G11C11/40 (KR); G11C11/4082 (EP,US);
G11C11/4096 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [1992/22]
TitleGerman:Synchroner dynamischer Direktzugriffspeicher[1992/22]
English:Synchronous dynamic random access memory[1992/22]
French:Mémoire dynamique synchrone à accès aléatoire[1992/22]
Examination procedure19.01.1993Examination requested  [1993/11]
20.02.1995Despatch of communication of intention to grant (Approval: No)
13.06.1995Despatch of a communication from the examining division (Time limit: M04)
28.07.1995Reply to a communication from the examining division
02.08.1995Despatch of communication of intention to grant (Approval: later approval)
08.08.1995Communication of intention to grant the patent
11.10.1995Fee for grant paid
11.10.1995Fee for publishing/printing paid
Opposition(s)08.11.1996No opposition filed within time limit [1997/06]
Fees paidRenewal fee
23.09.1993Renewal fee patent year 03
17.11.1994Renewal fee patent year 04
16.11.1995Renewal fee patent year 05
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Documents cited:Search[A]   IBM TECHNICAL DISCLOSURE BULLETIN. vol. 31, no. 8, January 1989, NEW YORK US pages 47 - 49; 'Method providing wait-state processor cycles using medium speed dynamic RAM' [A]
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