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Extract from the Register of European Patents

EP About this file: EP0345091

EP0345091 - Ferroelectric liquid crystal compositions [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.10.1994
Database last updated on 03.10.2024
Most recent event   Tooltip06.10.1994No opposition filed within time limitpublished on 23.11.1994 [1994/47]
Applicant(s)For all designated states
Chisso Corporation
6-32, Nakanoshima 3-chome Kita-ku Osaka-shi
Osaka 530-0055 / JP
[N/P]
Former [1989/49]For all designated states
Chisso Corporation
6-32, Nakanoshima 3-chome Kita-ku
Osaka-shi Osaka-fu / JP
Inventor(s)01 / Takeshita, Fusayuki
17 Tatsumidai-Higashi 2-chome
Ichihara-shi Chiba-ken / JP
02 / Kikuchi, Makoto
1708-7 Jousai
Kisarazu-shi Chiba-ken / JP
03 / Ichihashi, Mitsuyoshi
17 Tatsumidai-Higashi 2-chome
Ichihara-shi Chiba-ken / JP
04 / Terashima, Kanetsugu
8890, Goi
Ichihara-shi Chiba-ken / JP
05 / Furukawa, Kenji
8890, Goi
Ichihara-shi Chiba-ken / JP
[1989/49]
Representative(s)Lamb, John Baxter, et al
Marks & Clerk 90 Long Acre
London WC2E 9RA / GB
[N/P]
Former [1989/49]Lamb, John Baxter, et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Application number, filing date89305606.902.06.1989
[1989/49]
Priority number, dateJP1988013679803.06.1988         Original published format: JP 13679888
[1989/49]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0345091
Date:06.12.1989
Language:EN
[1989/49]
Type: A3 Search report 
No.:EP0345091
Date:13.03.1991
Language:EN
[1991/11]
Type: B1 Patent specification 
No.:EP0345091
Date:01.12.1993
Language:EN
[1993/48]
Search report(s)(Supplementary) European search report - dispatched on:EP24.01.1991
ClassificationIPC:C09K19/34, C09K19/42, C09K19/46
[1989/49]
CPC:
C09K19/46 (EP,KR,US); C09K19/34 (KR); C09K19/3455 (EP,US);
C09K19/42 (EP,US)
Designated contracting statesCH,   DE,   FR,   GB,   LI,   SE [1989/49]
TitleGerman:Ferroelektrische Flüssigkristallzusammensetzungen[1989/49]
English:Ferroelectric liquid crystal compositions[1989/49]
French:Compositions liquides cristallines ferro-électriques[1989/49]
Examination procedure17.05.1991Examination requested  [1991/29]
23.06.1992Despatch of a communication from the examining division (Time limit: M06)
03.12.1992Reply to a communication from the examining division
09.02.1993Despatch of communication of intention to grant (Approval: Yes)
27.05.1993Communication of intention to grant the patent
05.08.1993Fee for grant paid
05.08.1993Fee for publishing/printing paid
Opposition(s)02.09.1994No opposition filed within time limit [1994/47]
Fees paidRenewal fee
17.06.1991Renewal fee patent year 03
09.06.1992Renewal fee patent year 04
14.06.1993Renewal fee patent year 05
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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[X]EP0260910  (CHISSO CORP [JP]);
 [X]EP0260153  (CHISSO CORP [JP]);
 [YP]EP0318028  (CHISSO CORP [JP]);
 [Y]EP0269062  (CHISSO CORP [JP]);
 [X]EP0257457  (CHISSO CORP [JP])
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.