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Extract from the Register of European Patents

EP About this file: EP0511646

EP0511646 - High-speed logic circuit [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  29.08.1997
Database last updated on 31.08.2024
Most recent event   Tooltip29.08.1997Refusal of applicationpublished on 15.10.1997 [1997/42]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1992/45]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Hayano, Shin-ichiro, c/o NEC Corporation
7-1, Shiba 5-chome
Minato-ku, Tokyo / JP
02 / Matsuda, Osamu, c/o NEC Corporation
7-1, Shiba 5-chome
Minato-ku, Tokyo / JP
[1992/45]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [1992/45]VOSSIUS & PARTNER
Postfach 86 07 67
D-81634 München / DE
Application number, filing date92107299.729.04.1992
[1992/45]
Priority number, dateJP1991012850230.04.1991         Original published format: JP 12850291
[1992/45]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0511646
Date:04.11.1992
Language:EN
[1992/45]
Search report(s)(Supplementary) European search report - dispatched on:EP05.08.1992
ClassificationIPC:H03K19/013, H03K19/003
[1992/45]
CPC:
H03K19/0136 (EP,US); H03K19/00376 (EP,US)
Designated contracting statesDE,   FR,   GB [1992/45]
TitleGerman:Logikschaltung mit hoher Schaltgeschwindigkeit[1992/45]
English:High-speed logic circuit[1992/45]
French:Circuit logique à haute vitesse de commutation[1992/45]
Examination procedure17.11.1992Examination requested  [1993/02]
10.11.1995Despatch of a communication from the examining division (Time limit: M06)
20.05.1996Reply to a communication from the examining division
15.04.1997Date of oral proceedings
09.05.1997Despatch of communication that the application is refused, reason: substantive examination [1997/42]
09.05.1997Minutes of oral proceedings despatched
19.05.1997Application refused, date of legal effect [1997/42]
Fees paidRenewal fee
29.04.1994Renewal fee patent year 03
28.04.1995Renewal fee patent year 04
30.04.1996Renewal fee patent year 05
30.04.1997Renewal fee patent year 06
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Documents cited:Search[A]US4680480  (HOPTA DANIEL F [US]);
 [A]US4874970  (COY BRUCE H [US], et al);
 [A]FR2641143  (THOMSON COMPOSANTS MILITAIRES [FR]);
 [A]EP0423940  (FUJITSU LTD [JP]);
 [AP]EP0432577  (TOSHIBA KK [JP]);
 [AP]EP0463890  (NEC CORP [JP])
 [AD]  - IEEE JOURNAL OF SOLID-STATE CIRCUITS vol. 24, no. 5, October 1989, pages 1301-1306, New York, US; K.-Y. TOH et al.: "A 23-ps/2.1-mW ECL gate with an AC-coupled active pull-down emitter-follower stage"
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.