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Extract from the Register of European Patents

EP About this file: EP0412485

EP0412485 - Polymeric liquid-crystal composition and polymeric liquid-crystal device [Right-click to bookmark this link]
Former [1991/07]Polymeric liquid-crystal compound, polymeric liquid-crystal composition, and polymeric liquid-crystal device
[1997/04]
StatusNo opposition filed within time limit
Status updated on  28.11.1997
Database last updated on 02.11.2024
Most recent event   Tooltip30.11.2007Lapse of the patent in a contracting statepublished on 02.01.2008  [2008/01]
Applicant(s)For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
[N/P]
Former [1991/07]For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
Inventor(s)01 / Sato, Koiichi, C/o Canon Kabushiki Kaisha
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
02 / Yoshinaga, Kazuo, C/o Canon Kabushiki Kaisha
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
03 / Toshida, Yomishi, C/o Canon Kabushiki Kaisha
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
04 / Eguchi, Takeo, C/o Canon Kabushiki Kaisha
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
[1991/07]
Representative(s)Bühling, Gerhard, et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München / DE
[N/P]
Former [1994/08]Bühling, Gerhard, Dipl.-Chem., et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
D-80336 München / DE
Former [1991/07]Bühling, Gerhard, Dipl.-Chem.
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
D-80336 München / DE
Application number, filing date90115103.506.08.1990
[1991/07]
Priority number, dateJP1989020393408.08.1989         Original published format: JP 20393489
JP1989018793818.07.1990         Original published format: JP 18793889
[1991/07]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0412485
Date:13.02.1991
Language:EN
[1991/07]
Type: A3 Search report 
No.:EP0412485
Date:04.03.1992
Language:EN
[1992/10]
Type: B1 Patent specification 
No.:EP0412485
Date:22.01.1997
Language:EN
[1997/04]
Search report(s)(Supplementary) European search report - dispatched on:EP16.01.1992
ClassificationIPC:C09K19/38, C09K19/40, C08G77/38, C08F20/30
[1992/10]
CPC:
C08F20/30 (EP,US); C08G77/382 (EP,US); C08G77/385 (EP,US);
C09K19/3833 (EP,US); C09K19/3857 (EP,US); C09K19/408 (EP,US)
Former IPC [1991/07]C09K19/38, C09K19/40
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1991/07]
TitleGerman:Flüssigkristallpolymerzusammensetzung und Flüssigkristallpolymervorrichtung[1997/04]
English:Polymeric liquid-crystal composition and polymeric liquid-crystal device[1997/04]
French:Composition liquide cristalline polymère et dispositif à cristal liquide polymère[1997/04]
Former [1991/07]Flüssigkristallpolymerverbindung, Flüssigkristallpolymerzusammensetzung und Flüssigkristallpolymervorrichtung
Former [1991/07]Polymeric liquid-crystal compound, polymeric liquid-crystal composition, and polymeric liquid-crystal device
Former [1991/07]Composé liquide cristallin polymère, composition liquide cristalline polymère et dispositif à cristal liquide polymère
Examination procedure21.12.1990Examination requested  [1991/09]
11.11.1992Despatch of a communication from the examining division (Time limit: M06)
21.05.1993Reply to a communication from the examining division
27.09.1993Despatch of a communication from the examining division (Time limit: M06)
06.04.1994Reply to a communication from the examining division
13.12.1994Despatch of a communication from the examining division (Time limit: M06)
19.06.1995Reply to a communication from the examining division
15.03.1996Despatch of communication of intention to grant (Approval: Yes)
24.07.1996Communication of intention to grant the patent
24.10.1996Fee for grant paid
24.10.1996Fee for publishing/printing paid
Opposition(s)23.10.1997No opposition filed within time limit [1998/03]
Fees paidRenewal fee
27.08.1992Renewal fee patent year 03
26.08.1993Renewal fee patent year 04
30.08.1994Renewal fee patent year 05
29.08.1995Renewal fee patent year 06
27.08.1996Renewal fee patent year 07
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
ES22.01.1997
GR22.01.1997
IT22.01.1997
LI22.01.1997
NL22.01.1997
SE22.04.1997
LU31.08.1997
[2008/01]
Former [2003/07]AT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
ES22.01.1997
GR22.01.1997
IT22.01.1997
LI22.01.1997
NL22.01.1997
SE22.04.1997
LU31.08.1997
Former [2002/24]AT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
ES22.01.1997
GR22.01.1997
IT22.01.1997
LI22.01.1997
SE22.04.1997
LU31.08.1997
Former [2000/04]AT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
GR22.01.1997
IT22.01.1997
LI22.01.1997
SE22.04.1997
LU31.08.1997
Former [1999/42]AT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
IT22.01.1997
LI22.01.1997
SE22.04.1997
Former [1998/15]AT22.01.1997
BE22.01.1997
CH22.01.1997
DK22.01.1997
LI22.01.1997
SE22.04.1997
Former [1998/11]AT22.01.1997
BE22.01.1997
CH22.01.1997
LI22.01.1997
SE22.04.1997
Former [1998/04]AT22.01.1997
BE22.01.1997
CH22.01.1997
LI22.01.1997
Former [1997/49]AT22.01.1997
BE22.01.1997
Former [1997/42]AT22.01.1997
Documents cited:Search[XP]JP1213318  ;
 [X]EP0258898  (IDEMITSU KOSAN CO [JP]);
 [X]EP0274128  (IDEMITSU KOSAN CO [JP]);
 [X]EP0297554  (IDEMITSU KOSAN CO [JP]);
 [XP]EP0355772  (IDEMITSU KOSAN CO [JP]);
 [YP]EP0376310  (CANON KK [JP])
 [XP]  - PATENT ABSTRACTS OF JAPAN vol. 13, no. 523 (C-657)(3871) 21 November 1989 ( IDEMITSU ) & JP-A-1 213 318, & JP1213318 A 19891121
ExaminationEP0348873
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.