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Extract from the Register of European Patents

EP About this file: EP0703670

EP0703670 - Output buffer circuit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.01.2001
Database last updated on 03.10.2024
Most recent event   Tooltip05.01.2001No opposition filed within time limitpublished on 21.02.2001 [2001/08]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [2000/10]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
Former [1996/13]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Ohashi, Masayuki, c/o NEC Corporation
7-1, Shiba 5-chome, Minato-ku
Tokyo / JP
[1996/13]
Representative(s)Baronetzky, Klaus, et al
Splanemann
Patentanwälte Partnerschaft
Rumfordstrasse 7
80469 München / DE
[N/P]
Former [1996/13]Baronetzky, Klaus, Dipl.-Ing., et al
Patentanwälte Dipl.-Ing. R. Splanemann, Dr. B. Reitzner, Dipl.-Ing. K. Baronetzky Tal 13
D-80331 München / DE
Application number, filing date95115149.726.09.1995
[1996/13]
Priority number, dateJP1994022930826.09.1994         Original published format: JP 22930894
[1996/13]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0703670
Date:27.03.1996
Language:EN
[1996/13]
Type: A3 Search report 
No.:EP0703670
Date:11.09.1996
[1996/37]
Type: B1 Patent specification 
No.:EP0703670
Date:08.03.2000
Language:EN
[2000/10]
Search report(s)(Supplementary) European search report - dispatched on:EP25.07.1996
ClassificationIPC:H03K19/017, H03K17/06, H03K3/356
[1996/36]
CPC:
H03K19/01721 (EP,US); H03K19/0175 (KR); H03K17/063 (EP,US)
Former IPC [1996/13]H03K19/017
Designated contracting statesDE,   FR,   GB [1996/13]
TitleGerman:Ausgangspufferschaltung[1996/13]
English:Output buffer circuit[1996/13]
French:Circuit tampon de sortie[1996/13]
Examination procedure16.12.1996Examination requested  [1997/07]
23.07.1997Despatch of a communication from the examining division (Time limit: M04)
14.11.1997Reply to a communication from the examining division
08.04.1998Despatch of a communication from the examining division (Time limit: M06)
09.10.1998Reply to a communication from the examining division
17.12.1998Despatch of a communication from the examining division (Time limit: M04)
30.03.1999Reply to a communication from the examining division
14.07.1999Despatch of communication of intention to grant (Approval: Yes)
23.09.1999Communication of intention to grant the patent
08.12.1999Fee for grant paid
08.12.1999Fee for publishing/printing paid
Opposition(s)09.12.2000No opposition filed within time limit [2001/08]
Fees paidRenewal fee
19.09.1997Renewal fee patent year 03
03.09.1998Renewal fee patent year 04
30.08.1999Renewal fee patent year 05
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Documents cited:Search[A]US4992681  (URAKAWA YUKIHIRO [JP], et al) [A] 4 * figure 3 *;
 [A]JPS57192119  ;
 [A]EP0559996  (ST MICROELECTRONICS SRL [IT]) [A] 1,11 * figure 5 *
 [X]  - FURUTANI K ET AL, "AN ADJUSTABLE OUTPUT DRIVER WITH SELF-RECOVERING VPP GENERATOR FOR 4MX16 DRAM", PROCEEDINGS OF THE CUSTOM INTEGRATED CIRCUITS CONFERENCE, SAN DIEGO, MAY 9 - 12, 1993, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, (19930509), no. CONF. 15, pages 25.03.01 - 25.03.04, XP000409746 [X] 1-3,5,11-14,16 * figures 9,10 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19830217), vol. 007, no. 040, Database accession no. (E - 159), & JP57192119 A 19821126 (TOKYO SHIBAURA DENKI KK) [A] 4 * abstract *
 [A]  - "ICS YIELD HIGH-SIDE FET-DRIVE SUPPLY 11 V ABOVE POWER RAIL", ELECTRONIC DESIGN, (19911010), vol. 39, no. 19, page 138, XP000255302 [A] 1,11
ExaminationUS5128560
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.