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Extract from the Register of European Patents

EP About this file: EP0462866

EP0462866 - Semiconductor memory device [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.09.1997
Database last updated on 24.08.2024
Most recent event   Tooltip17.02.2006Change - lapse in a contracting state
Updated state(s): FR
published on 05.04.2006  [2006/14]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
[N/P]
Former [1991/52]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
Inventor(s)01 / Taguchi, Masao
4-3-4-201, Shin Isono
Sagamihara-shi, Kanagawa 228 / JP
[1991/52]
Representative(s)Joly, Jean-Jacques, et al
Cabinet Beau de Loménie
158, rue de l'Université
75340 Paris cedex 07 / FR
[N/P]
Former [1991/52]Joly, Jean-Jacques, et al
Cabinet Beau de Loménie 158, rue de l'Université
F-75340 Paris Cédex 07 / FR
Application number, filing date91401505.207.06.1991
[1991/52]
Priority number, dateJP1990014944407.06.1990         Original published format: JP 14944490
[1991/52]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0462866
Date:27.12.1991
Language:EN
[1991/52]
Type: A3 Search report 
No.:EP0462866
Date:03.02.1993
Language:EN
[1993/05]
Type: B1 Patent specification 
No.:EP0462866
Date:30.10.1996
Language:EN
[1996/44]
Search report(s)(Supplementary) European search report - dispatched on:EP17.12.1992
ClassificationIPC:G11C11/407, G11C11/409
[1996/44]
CPC:
G11C5/14 (EP,US); G11C11/407 (KR); G11C11/4074 (EP,US);
G11C11/4091 (EP,US); G11C11/4094 (EP,US); G11C5/147 (EP,US)
Former IPC [1991/52]G11C11/409
Designated contracting statesDE,   FR,   GB,   IT [1991/52]
TitleGerman:Halbleiterspeicheranordnung[1991/52]
English:Semiconductor memory device[1991/52]
French:Dispositif de mémoire à semi-conducteurs[1991/52]
Examination procedure06.04.1993Examination requested  [1993/23]
16.03.1995Despatch of a communication from the examining division (Time limit: M04)
19.06.1995Reply to a communication from the examining division
18.10.1995Despatch of communication of intention to grant (Approval: No)
25.04.1996Despatch of communication of intention to grant (Approval: later approval)
02.05.1996Communication of intention to grant the patent
18.07.1996Fee for grant paid
18.07.1996Fee for publishing/printing paid
Opposition(s)31.07.1997No opposition filed within time limit [1997/43]
Fees paidRenewal fee
18.06.1993Renewal fee patent year 03
20.06.1994Renewal fee patent year 04
17.06.1995Renewal fee patent year 05
21.06.1996Renewal fee patent year 06
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Lapses during opposition  TooltipFR30.10.1996
[2006/14]
Former [1997/34]FR28.03.1997
Documents cited:Search[A]  - IEEE INTERNATIONAL SOLID STATE CIRCUITS CONFERENCE. vol. 32, February 1989, NEW YORK US FUJII ET AL. 'A 45NS 16MB DRAM WITH TRIPLE WELL STRUCTURE' PAG 248-249 + 354
 [A]  - IEEE JOURNAL OF SOLID-STATE CIRCUITS. vol. 24, no. 3, June 1989, NEW YORK US pages 597 - 602 KITSUKAWA ET AL. 'A 1MBIT BICMOS DRAM USING TEMPERATURE COMPENSATED CIRCUIT TECHNIQUES'
 [A]  - IEEE JOURNAL OF SOLID-STATE CIRCUITS. vol. 22, no. 3, June 1987, NEW YORK US pages 437 - 441 FURUYAMA ET.AL. 'A NEW ON CHIP VOLTAGE CONVERTERFOR SUB MICROMETER HIGH DENSITY DRAMS'
ExaminationEP0129651
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