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Extract from the Register of European Patents

EP About this file: EP0035326

EP0035326 - Decoder circuit [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  17.10.1985
Database last updated on 03.08.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
[N/P]
Former [1981/36]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
Inventor(s)01 / Isogai, Hideaki
11-13, Minamisawa 4-chome Higashikurume-shi
Tokyo 180-03 / JP
[1981/36]
Representative(s)Sunderland, James Harry, et al
Haseltine Lake LLP Lincoln House 300 High Holborn London
WC1V 7JH / GB
[N/P]
Former [1981/36]Sunderland, James Harry, et al
HASELTINE LAKE & CO Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date81300487.605.02.1981
[1981/36]
Priority number, dateJP1980001457608.02.1980         Original published format: JP 1457680
[1981/36]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0035326
Date:09.09.1981
Language:EN
[1981/36]
Type: A3 Search report 
No.:EP0035326
Date:23.09.1981
Language:EN
[1981/38]
Search report(s)(Supplementary) European search report - dispatched on:EP23.07.1981
ClassificationIPC:G11C8/00, G11C11/40, H03K13/25
[1981/36]
CPC:
H03M7/005 (EP,US); G11C11/415 (EP,US); G11C8/10 (EP,US);
G11C8/12 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [1981/45]
Former [1981/36]AT,  BE,  CH,  DE,  FR,  GB,  IT,  LI,  LU,  NL,  SE 
TitleGerman:Decoderschaltung[1981/36]
English:Decoder circuit[1981/36]
French:Circuit de décodage[1981/36]
File destroyed:13.07.1991
Examination procedure01.06.1981Despatch of communication of loss of particular rights: designated state(s) AT, BE, CH, IT, LU, SE
12.08.1981Loss of particular rights, legal effect: designated state(s)
17.02.1982Examination requested  [1982/17]
14.04.1983Despatch of a communication from the examining division (Time limit: M06)
17.10.1983Reply to a communication from the examining division
12.03.1984Despatch of a communication from the examining division (Time limit: M08)
20.09.1984Reply to a communication from the examining division
02.07.1985Despatch of communication that the application is refused, reason: substantive examination [1985/51]
12.07.1985Application refused, date of legal effect [1985/51]
Fees paidRenewal fee
31.01.1983Renewal fee patent year 03
26.01.1984Renewal fee patent year 04
05.02.1985Renewal fee patent year 05
Penalty fee
Penalty fee Rule 85a EPC 1973
05.03.1981AT   M02   Not yet paid
05.03.1981BE   M02   Not yet paid
05.03.1981CH   M02   Not yet paid
05.03.1981IT   M02   Not yet paid
05.03.1981LU   M02   Not yet paid
05.03.1981SE   M02   Not yet paid
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Documents cited:Search[X]US3736574  (GERSBACH J);
 US4007451  [ ] (HEUBER KLAUS, et al);
 [P]EP0019988  (FUJITSU LTD [JP]);
 [P]DE2904457  (SIEMENS AG);
 [E]EP0024894  (FUJITSU LTD [JP]);
 [A]US4027285  (MILLHOLLAN MICHAEL S, et al);
 [A]DE2658523  (SIEMENS AG)
    [ ] - IEEE Transactions on Electron Devices, Vol. ED-26, No. 6, June 1979, pages 886-892 New York, U.S.A. K. KAWARADA et al.: "A 4K-Bit Static I2L Memory" * pages 889-890paragraph "D. New Decoder Circuit"; figures 6,7 *
    [ ] - IEEE Journal of Solid-State Circuits, Vol. SC-14, No. 5, October 1979, pages 850-854 New York, U.S.A. H. GLOCK et al.: "An ECL 100K-Compatible 1024 X 4 Bit RAM with 15 ns Access Time" * pages 851-852paragraph "F Address Decoder"; figures 4,5
    [ ] - IEEE Journal of Solid-State Circuits, Vol. SC-15, No. 3, June 1980, pages 306-310 New YorkU.S.A. H. ERNST et al.: "A High-Speed ECL 100K Compatible 64 X 4 Bit RAM with 6 ns Access Time" * figure 2 *
    [ ] - Intel Data Sheet, December 1970, 15 pages, Intel Editor Mountain ViewU.S.A. "Partially Decoded Ramdom Access 265 Bit Bipolar Memory (3102) and Binary Decoder-Driver (3202)" * pages 1,10 *
    [ ] - IEEE International Solid-State Circuits Conference, 16th February 1978, pages 154-155 New YorkU.S.A. P.M. QUINN et al.: "A 16K x 113L Dynamic RAM"
    [ ] - IEEE Journal of Solid-State Circuits, Vol. SC-13, No. 5, October 1978, Pages 656-663 New YorkU.S.A. K. KAWARADA et al.: "A Fast 7.5 ns Access IK-Bit RAM for Cache-Memory Systems"
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.