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Extract from the Register of European Patents

EP About this file: EP0031143

EP0031143 - Memory device [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.01.1988
Database last updated on 03.10.2024
Most recent event   Tooltip07.03.1997Lapse of the patent in a contracting statepublished on 23.04.1997 [1997/17]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho, Saiwai-ku Kawasaki-shi
Kanagawa-ken 210-8572 / JP
[N/P]
Former [1981/26]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210, Tokyo / JP
Inventor(s)01 / Kawate, Keiichi
12-103, Kamome-danchi 3999 Hino-machi
Konan-ku Yokohama-shi / JP
[1981/26]
Representative(s)Henkel & Partner mbB
Patentanwaltskanzlei, Rechtsanwaltskanzlei
Maximiliansplatz 21
80333 München / DE
[N/P]
Former [1981/26]Henkel, Feiler, Hänzel & Partner
Möhlstrasse 37
D-81675 München / DE
Application number, filing date80107999.717.12.1980
[1981/26]
Priority number, dateJP1979016480320.12.1979         Original published format: JP 16480379
JP1980005503625.04.1980         Original published format: JP 5503680
JP1980005503725.04.1980         Original published format: JP 5503780
JP1980005504125.04.1980         Original published format: JP 5504180
[1981/26]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0031143
Date:01.07.1981
Language:EN
[1981/26]
Type: A3 Search report 
No.:EP0031143
Date:28.03.1984
Language:EN
[1984/13]
Type: B1 Patent specification 
No.:EP0031143
Date:11.03.1987
Language:EN
[1987/11]
Search report(s)(Supplementary) European search report - dispatched on:EP27.01.1984
ClassificationIPC:G06F11/20
[1981/26]
CPC:
G06F11/2007 (EP,US); G02F1/13624 (EP,US); G11C29/70 (EP,US);
H10B12/00 (EP,US); G02F1/136263 (EP,US)
Designated contracting statesDE,   FR,   GB [1981/26]
TitleGerman:Speichervorrichtung[1981/26]
English:Memory device[1981/26]
French:Dispositif de mémoire[1981/26]
File destroyed:20.04.2002
Examination procedure17.12.1980Examination requested  [1981/26]
18.06.1985Despatch of a communication from the examining division (Time limit: M04)
22.10.1985Reply to a communication from the examining division
17.12.1985Despatch of communication of intention to grant (Approval: )
01.07.1986Fee for grant paid
01.07.1986Fee for publishing/printing paid
17.07.1986Communication of intention to grant the patent
Opposition(s)12.12.1987No opposition filed within time limit [1988/09]
Fees paidRenewal fee
17.12.1982Renewal fee patent year 03
28.12.1983Renewal fee patent year 04
27.12.1984Renewal fee patent year 05
30.12.1985Renewal fee patent year 06
29.12.1986Renewal fee patent year 07
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Documents cited:Search[X]US3707767  (QUEVRIN J);
 [A]US3715735  (MOSS W);
 [A]DE2208158  (LICENTIA GMBH);
 [A]DE2538373  (SIEMENS AG)
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.