Extract from the Register of European Patents

EP About this file: EP0075942

EP0075942 - Memory circuit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.06.1990
Database last updated on 08.04.2026
Most recent event   Tooltip15.06.1990No opposition filed within time limitpublished on 01.08.1990 [1990/31]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1983/14]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Nagami, Akira
c/o Nippon Electric Co., Ltd.
33-1, Shiba Gochome Minato-ku Tokyo / JP
[1983/14]
Representative(s)Glawe, Delfs, Moll
Partnerschaft mbB von
Patent- und Rechtsanwälten
Postfach 26 01 62
80058 München / DE
[N/P]
Former [1983/14]Glawe, Delfs, Moll & Partner
Patentanwälte Postfach 26 01 62
D-80058 München / DE
Application number, filing date82109005.729.09.1982
[1983/14]
Priority number, dateJP1981015434729.09.1981         Original published format: JP 15434781
[1983/14]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0075942
Date:06.04.1983
Language:EN
[1983/14]
Type: A3 Search report 
No.:EP0075942
Date:29.01.1986
Language:EN
[1986/05]
Type: B1 Patent specification 
No.:EP0075942
Date:16.08.1989
Language:EN
[1989/33]
Search report(s)(Supplementary) European search report - dispatched on:EP26.11.1985
ClassificationIPC:G11C11/24
[1983/14]
CPC:
G11C11/406 (EP,US)
Designated contracting statesDE,   FR,   GB [1983/14]
TitleGerman:Speicherschaltung[1983/14]
English:Memory circuit[1983/14]
French:Circuit de mémoire[1983/14]
Examination procedure29.07.1986Examination requested  [1986/45]
17.12.1987Despatch of a communication from the examining division (Time limit: M06)
24.05.1988Reply to a communication from the examining division
05.10.1988Despatch of communication of intention to grant (Approval: Yes)
14.02.1989Communication of intention to grant the patent
19.05.1989Fee for grant paid
19.05.1989Fee for publishing/printing paid
Opposition(s)17.05.1990No opposition filed within time limit [1990/31]
Fees paidRenewal fee
19.09.1984Renewal fee patent year 03
19.09.1985Renewal fee patent year 04
19.09.1986Renewal fee patent year 05
21.09.1987Renewal fee patent year 06
22.09.1988Renewal fee patent year 07
Penalty fee
Penalty fee Rule 85b EPC 1973
29.07.1986M02   Not yet paid
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Documents cited:Search[AD]   1979 IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCE, 15th February 1979, pages 144-145, IEEE, Digest of Technical Papers, New York, US; S.SHEFFIELD EATON: "A 5V-Only 2Kx8 Dynamic RAM" [AD]
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