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Extract from the Register of European Patents

EP About this file: EP0284357

EP0284357 - Semiconductor integrated circuit having a data output buffer circuit [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  17.03.1993
Database last updated on 02.07.2024
Most recent event   Tooltip17.03.1993Refusal of applicationpublished on 05.05.1993 [1993/18]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho, Saiwai-ku Kawasaki-shi
Kanagawa-ken 210-8572 / JP
[N/P]
Former [1988/39]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210, Tokyo / JP
Inventor(s)01 / Ohshima, Shigeo c/o Patent Division
Toshiba Corp. Principal Off., 1-1 shibaura 1-chome
Minato-ku Tokyo / JP
02 / Sahara, Hiroshi c/o Patent Division
Toshiba Corp. Principal Off., 1-1 Shibaura,1-chome
Minato-ku Tokyo / JP
[1988/39]
Representative(s)Freed, Arthur Woolf, et al
Marks & Clerk Incorporating Edward Evans Barker 90 Long Acre
London WC2E 9RA / GB
[N/P]
Former [1988/39]Freed, Arthur Woolf, et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Application number, filing date88302518.122.03.1988
[1988/39]
Priority number, dateJP1987006825423.03.1987         Original published format: JP 6825487
[1988/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0284357
Date:28.09.1988
Language:EN
[1988/39]
Type: A3 Search report 
No.:EP0284357
Date:13.12.1989
Language:EN
[1989/50]
Search report(s)(Supplementary) European search report - dispatched on:EP25.10.1989
ClassificationIPC:H03K5/02, H03K19/094, H03K19/003, H03K17/16
[1988/39]
CPC:
G11C11/34 (KR); H03K17/162 (EP,US); H03K19/00361 (EP,US)
Designated contracting statesDE,   FR,   GB [1988/39]
TitleGerman:Integrierte Halbleiterschaltung mit einer Pufferschaltung für Datenausgabe[1988/39]
English:Semiconductor integrated circuit having a data output buffer circuit[1988/39]
French:Circuit intégré à semi-conducteurs ayant un circuit tampon pour sortie de signaux[1988/39]
File destroyed:12.06.1999
Examination procedure30.03.1988Examination requested  [1988/39]
28.01.1991Despatch of a communication from the examining division (Time limit: M06)
29.07.1991Reply to a communication from the examining division
11.10.1991Despatch of a communication from the examining division (Time limit: M04)
05.02.1992Reply to a communication from the examining division
30.10.1992Date of oral proceedings
04.12.1992Despatch of communication that the application is refused, reason: substantive examination [1993/18]
04.12.1992Minutes of oral proceedings despatched
14.12.1992Application refused, date of legal effect [1993/18]
Fees paidRenewal fee
15.03.1990Renewal fee patent year 03
17.12.1990Renewal fee patent year 04
13.03.1992Renewal fee patent year 05
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Documents cited:Search[X]EP0214307  (SONY CORP [JP]);
 [XP]EP0251880  (FAIRCHILD SEMICONDUCTOR [US]);
 [A]GB2177865  (SONY CORP)
 [X]  - PATENT ABSTRACTS OF JAPAN
    [ ] - PATENT ABSTRACTS OF JAPAN
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.