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Extract from the Register of European Patents

EP About this file: EP0428247

EP0428247 - Semiconductor memory device with improved contact layout [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.02.1998
Database last updated on 18.11.2024
Most recent event   Tooltip13.02.1998No opposition filed within time limitpublished on 01.04.1998 [1998/14]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
[N/P]
Former [1991/21]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
Inventor(s)01 / Ema, Taiji
Enzeru Haimu Shinjo 101, 1453-1 Suenaga Takatsu-Ku
Kawasaki-shi, Kanagawa 213 / JP
02 / Hashimoto, Koichi
Kamikurata-danchi 12-401, 259, Kamikurata-cho
Totsuka-ku, Yokohama-shi, Kanagawa 244 / JP
[1991/21]
Representative(s)Stebbing, Timothy Charles, et al
Haseltine Lake LLP
Lincoln House, 5th Floor
300 High Holborn
London WC1V 7JH / GB
[N/P]
Former [1991/21]Stebbing, Timothy Charles, et al
Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date90309036.317.08.1990
[1991/21]
Priority number, dateJP1989021342619.08.1989         Original published format: JP 21342689
JP1990007000620.03.1990         Original published format: JP 7000690
[1991/21]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0428247
Date:22.05.1991
Language:EN
[1991/21]
Type: A3 Search report 
No.:EP0428247
Date:04.12.1991
Language:EN
[1991/49]
Type: B1 Patent specification 
No.:EP0428247
Date:09.04.1997
Language:EN
[1997/15]
Search report(s)(Supplementary) European search report - dispatched on:EP11.10.1991
ClassificationIPC:H01L27/108, G11C11/409
[1991/47]
CPC:
H10B12/31 (EP,KR,US); H10B12/30 (EP,US)
Former IPC [1991/21]H01L27/108
Designated contracting statesDE [1996/47]
Former [1991/21]DE,  FR,  GB 
TitleGerman:Halbleiterspeicherbauteil mit verbessertem "Layout" der Kontakte[1991/21]
English:Semiconductor memory device with improved contact layout[1991/21]
French:Dispositif semi-conducteur à mémoire comprenant une disposition de contacts améliorée[1991/21]
MiscellaneousEPB 1996/48: Teilanmeldung 96115376.4 eingereicht am 25/09/96
EPB 1996/48: Divisional application 96115376.4 filed on 25/09/96
EPB 1996/48: Demande divisionnaire 96115376.4 déposée le 25/09/96
Examination procedure27.05.1992Examination requested  [1992/30]
19.04.1994Despatch of a communication from the examining division (Time limit: M06)
01.12.1994Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time
20.01.1995Reply to a communication from the examining division
26.03.1996Despatch of communication of intention to grant (Approval: Yes)
04.10.1996Communication of intention to grant the patent
30.12.1996Fee for grant paid
30.12.1996Fee for publishing/printing paid
Divisional application(s)EP96115376.4  / EP0756327
EP96115377.2  / EP0762502
Opposition(s)10.01.1998No opposition filed within time limit [1998/14]
Request for further processing for:20.01.1995Request for further processing filed
26.01.1995Full payment received (date of receipt of payment)
Request granted
14.02.1995Decision despatched
Fees paidRenewal fee
10.08.1992Renewal fee patent year 03
11.08.1993Renewal fee patent year 04
11.08.1994Renewal fee patent year 05
24.08.1995Renewal fee patent year 06
28.08.1996Renewal fee patent year 07
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[X]JP61274357  ;
 [A]JP62158359  ;
 [Y]JP1179449  ;
 [A]JP61274357  ;
 [A]EP0031490  (IBM [US]);
 [Y]US4833518  (MATSUDA YOSHIO [JP], et al);
 [XP]EP0369132  (TOSHIBA KK [JP]);
 [AE]EP0399531  (TOSHIBA KK [JP])
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.