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Extract from the Register of European Patents

EP About this file: EP0298430

EP0298430 - Semiconductor device having a floating gate [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  09.06.1992
Database last updated on 03.09.2024
Most recent event   Tooltip09.06.1992Application deemed to be withdrawnpublished on 29.07.1992 [1992/31]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo 101 / JP
[N/P]
Former [1989/02]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 101 / JP
Inventor(s)01 / Kume, Hitoshi
1-33-7, Nishikubo
Musashino-shi Tokyo / JP
02 / Yamamoto, Hideaki
1-25-2, Higashitokorozawa
Tokorozawa-shi Saitama-ken / JP
03 / Tsukada, Toshihisa
3-29-2, Sekimae
Musashino-shi Tokyo / JP
04 / Kamigaki, Yoshiaki
2-41-11, Higashitokorozawa
Tokorozawa-shi Saitama-ken / JP
05 / Adachi, Tetsuo
1-48-18, Akatsuki-cho
Hachioji-shi Tokyo / JP
06 / Kure, Tokuo
1-217, Higashikoigakubo
Kokubunji-shi Tokyo / JP
[1989/02]
Representative(s)Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[N/P]
Former [1989/02]Strehl Schübel-Hopf Groening & Partner
Maximilianstrasse 54
D-80538 München / DE
Application number, filing date88110725.405.07.1988
[1989/02]
Priority number, dateJP1987016864308.07.1987         Original published format: JP 16864387
JP1987027018928.10.1987         Original published format: JP 27018987
JP1987026810726.10.1987         Original published format: JP 26810787
[1989/02]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0298430
Date:11.01.1989
Language:EN
[1989/02]
Type: A3 Search report 
No.:EP0298430
Date:16.05.1990
Language:EN
[1990/20]
Search report(s)(Supplementary) European search report - dispatched on:EP28.03.1990
ClassificationIPC:H01L29/00, H01L29/78, H01L27/10
[1989/02]
CPC:
H01L27/10 (KR); H01L29/78612 (EP); H01L29/788 (KR);
H01L29/7883 (EP)
Designated contracting statesDE,   FR,   GB [1989/02]
TitleGerman:Halbleiter Anordnung mit schwimmender Gate[1989/02]
English:Semiconductor device having a floating gate[1989/02]
French:Dispositif semi-conducteur à grille flottante[1989/02]
File destroyed:20.04.2002
Examination procedure30.10.1990Examination requested  [1990/52]
31.01.1992Application deemed to be withdrawn, date of legal effect  [1992/31]
03.03.1992Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [1992/31]
Fees paidRenewal fee
30.07.1990Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.07.199104   M06   Not yet paid
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[Y]JP61131486  ;
 [X]EP0164605  (TOSHIBA KK [JP]);
 [X]GB2107119  (SEIKO INSTR & ELECTRONICS [JP]);
 [X]EP0219241  (SEIKO INSTR & ELECTRONICS [JP]);
 [X]EP0197284  (FUJITSU LTD [JP])
 [Y]  - PATENT ABSTRACTS OF JAPAN. vol. 10, no. 319 (E-450)(2375) 30 October 1986; & JP-A-61 131 486 (RES.DEV.CORP. OF JAPAN) 19-06-1986, & JP61131486 A 19861030
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.