EP0335348A3

Mesomorphic compound, ferroelectric liquid crystal composition containing same and ferroelectric liquid crystal device

Abstract

There is disclosed a mesomorphic compound represented by the following formula (I): wherein A1 denotes a single bond, A2 denotesX denotes hydrogen, a halogen or cyano group; Y denotes oxygen or sulfur; R1 and R2 respectively denotes a linear or branched alkyl, alkoxy, alkylcarbonyloxy, alkoxycarbonyl or alkoxycarbonyloxy group each having 1 - 18 carbon atoms and each capable of having a substituted of chloro, bromo, cyano, alkoxy or alkoxycarbonyl group; and B denotes A ferroelectric liquid crystal composition comprises at least two mesomorphic compounds including at least one mesomorphic compound represented by the formula (I). A ferroelectric liquid crystal device is constituted by disposing the ferroelectric liquid crystal composition between a pair of substrates.

EP0335348A3, drawing sheet 1 — Sheet 1 of 5

Term

Term ended

Projected expiry passed 28 March 2009, 17.5 years ago.

5 sheets

Sheet 1
Sheet 2
Sheet 3
Sheet 4
Sheet 5

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during
FR2617496A1	Cites	France	XP	Search report
WO8808019A1	Cites	World Intellectual Property Organization (WIPO)	XP	Search report

146 members in 9 offices

This recordMember, by publication datePriority claim

Priority claims12

Priority claims
Document	Office	Kind	Date
7507888	Japan	–	1988-03-28
7507888	Japan	A	1988-03-28
7507888	Japan	A	1988-03-28
15767588	Japan	–	1988-06-24
15767588	Japan	A	1988-06-24
15767588	Japan	A	1988-06-24
6477589	Japan	–	1989-03-15
6477589	Japan	A	1989-03-15
6477589	Japan	A	1989-03-15
JP19880075078	–	–	–
JP19880157675	–	–	–
JP19890064775	–	–	–

Members146

Family members, oldest first
Document	Office	Kind
EP0335348A2	European Patent Office (EPO)	A2	1989-10-04
EP0347940A2	European Patent Office (EPO)	A2	1989-12-27
EP0347941A2	European Patent Office (EPO)	A2	1989-12-27
EP0347942A2	European Patent Office (EPO)	A2	1989-12-27
EP0347943A2	European Patent Office (EPO)	A2	1989-12-27
EP0347944A2	European Patent Office (EPO)	A2	1989-12-27
EP0351587A2	European Patent Office (EPO)	A2	1990-01-24
JPH0224385A	Japan	A	1990-01-26
JPH0224388A	Japan	A	1990-01-26
JPH0224389A	Japan	A	1990-01-26
JPH0228285A	Japan	A	1990-01-30
JPH0228287A	Japan	A	1990-01-30
JPH0228288A	Japan	A	1990-01-30
JPH0228289A	Japan	A	1990-01-30
EP0352479A2	European Patent Office (EPO)	A2	1990-01-31
EP0352480A2	European Patent Office (EPO)	A2	1990-01-31
JPH0229491A	Japan	A	1990-01-31
JPH0236298A	Japan	A	1990-02-06
JPH0238485A	Japan	A	1990-02-07
JPH0238486A	Japan	A	1990-02-07
JPH0238487A	Japan	A	1990-02-07
JPH0238488A	Japan	A	1990-02-07
JPH0238489A	Japan	A	1990-02-07
EP0355313A2	European Patent Office (EPO)	A2	1990-02-28
EP0355314A2	European Patent Office (EPO)	A2	1990-02-28
JPH02275868A	Japan	A	1990-11-09
EP0335348A3This record	European Patent Office (EPO)	A3	1990-12-05
JPH0312477A	Japan	A	1991-01-21
JPH0312478A	Japan	A	1991-01-21
JPH0312480A	Japan	A	1991-01-21
JPH0312482A	Japan	A	1991-01-21
JPH0312483A	Japan	A	1991-01-21
JPH0312484A	Japan	A	1991-01-21
JPH0312485A	Japan	A	1991-01-21
JPH0312487A	Japan	A	1991-01-21
JPH0312488A	Japan	A	1991-01-21
JPH0312490A	Japan	A	1991-01-21
US5034151A	United States of America	A	1991-07-23
EP0347941A3	European Patent Office (EPO)	A3	1991-08-28
EP0347942A3	European Patent Office (EPO)	A3	1991-09-04
EP0352480A3	European Patent Office (EPO)	A3	1991-09-04
EP0347943A3	European Patent Office (EPO)	A3	1991-09-11
EP0352479A3	European Patent Office (EPO)	A3	1991-09-11
EP0351587A3	European Patent Office (EPO)	A3	1991-09-18
EP0355314A3	European Patent Office (EPO)	A3	1991-09-18
EP0347944A3	European Patent Office (EPO)	A3	1991-10-09
EP0347940A3	European Patent Office (EPO)	A3	1991-10-16
EP0355313A3	European Patent Office (EPO)	A3	1991-10-23
NO924918D0	Norway	D0	1992-12-18
FI925723A	Finland	A	1993-06-20
NO924918L	Norway	L	1993-06-21
EP0547282A1	European Patent Office (EPO)	A1	1993-06-23
US5238601A	United States of America	A	1993-08-24
US5240637A	United States of America	A	1993-08-31
JPH05249094A	Japan	A	1993-09-28
US5250217A	United States of America	A	1993-10-05
US5290520A	United States of America	A	1994-03-01
US5292453A	United States of America	A	1994-03-08
US5328640A	United States of America	A	1994-07-12
EP0352479B1	European Patent Office (EPO)	B1	1994-08-31
EP0355313B1	European Patent Office (EPO)	B1	1994-08-31
EP0355314B1	European Patent Office (EPO)	B1	1994-08-31
EP0347943B1	European Patent Office (EPO)	B1	1994-09-14
AT110762T	Austria	T	1994-09-15
AT110763T	Austria	T	1994-09-15
AT110764T	Austria	T	1994-09-15
AT111504T	Austria	T	1994-09-15
ATE110762T1	Austria	T1	1994-09-15
ATE110763T1	Austria	T1	1994-09-15
ATE110764T1	Austria	T1	1994-09-15
ATE111504T1	Austria	T1	1994-09-15
EP0347940B1	European Patent Office (EPO)	B1	1994-09-21
EP0347942B1	European Patent Office (EPO)	B1	1994-09-21
EP0351587B1	European Patent Office (EPO)	B1	1994-09-21
DE68917824D1	Germany	D1	1994-10-06
DE68917832D1	Germany	D1	1994-10-06
DE68917833D1	Germany	D1	1994-10-06
AT111944T	Austria	T	1994-10-15
AT111947T	Austria	T	1994-10-15
AT111949T	Austria	T	1994-10-15
ATE111944T1	Austria	T1	1994-10-15
ATE111947T1	Austria	T1	1994-10-15
ATE111949T1	Austria	T1	1994-10-15
DE68918172D1	Germany	D1	1994-10-20
DE68918341D1	Germany	D1	1994-10-27
DE68918342D1	Germany	D1	1994-10-27
DE68918358D1	Germany	D1	1994-10-27
ES2058401T3	Spain	T3	1994-11-01
ES2058402T3	Spain	T3	1994-11-01
ES2058403T3	Spain	T3	1994-11-01
ES2058404T3	Spain	T3	1994-11-01
US5364559A	United States of America	A	1994-11-15
ES2059629T3	Spain	T3	1994-11-16
ES2059630T3	Spain	T3	1994-11-16
ES2059631T3	Spain	T3	1994-11-16
DE68917824T2	Germany	T2	1995-01-19
DE68917832T2	Germany	T2	1995-01-26
DE68917833T2	Germany	T2	1995-01-26
DE68918172T2	Germany	T2	1995-01-26
EP0347944B1	European Patent Office (EPO)	B1	1995-02-01

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46 legal events, as 3 offices reported them to INPADOC

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	Event	Code	Office
2005-03-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2005-01-07	Notification of lapseLapsedST	ST	FR
2004-12-01	Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4	NLV4	EP
2004-11-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-11-17	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2004-10-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-10-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2004-03-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2003-04-09	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-03-27	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-03-26	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2003-03-10	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-08-01	Nl: receipt of modified translations in the netherlands language after an opposition procedureOppositionNLR3	NLR3	EP
2002-05-24	Fr: translation filed ** decision concerning oppositionOppositionET3	ET3	EP
2002-05-01	Nl: decision of oppositionOppositionNLR2	NLR2	EP
2002-02-27	Patent maintained in amended form27A	27A	EP
2002-02-27	Designated contracting statesAK	AK	EP
2002-01-11	Patent maintained in amended formORIGINAL CODE: 0009272PUAH	PUAH	EP
2002-01-11	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: PATENT MAINTAINED AS AMENDEDSTAA	STAA	EP
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
2001-09-18	Interlocutory decision in oppositionOppositionORIGINAL CODE: EPIDOS IDOPPLAW	PLAW	EP
2001-05-08	Interlocutory decision in oppositionOppositionORIGINAL CODE: EPIDOS IDOPPLAW	PLAW	EP
1997-08-08	Reply of patent proprietor to notice(s) of oppositionOppositionORIGINAL CODE: EPIDOS OBSOPLBF	PLBF	EP
1997-06-05	Reply of patent proprietor to notice(s) of oppositionOppositionORIGINAL CODE: EPIDOS OBSOPLBF	PLBF	EP
1997-06-02	Nl: opposition has been filed with the epoOppositionNLR1	NLR1	EP
1997-05-01	Nl: opposition has been filed with the epoOppositionNLR1	NLR1	EP
1997-04-02	Opposition filed (corrected)OppositionR26	R26	EP
1997-02-26	Opposition filedOpposition26	26	EP
1997-02-14	Opposition data, opponent's data or that of the opponent's representative modifiedOppositionORIGINAL CODE: 0009299OPPOPLAB	PLAB	EP
1997-02-11	Unpublished change to opponent dataORIGINAL CODE: EPIDOS OPPOPLBQ	PLBQ	EP
1997-01-23	Reply of patent proprietor to notice(s) of oppositionOppositionORIGINAL CODE: EPIDOS OBSOPLBF	PLBF	EP
1997-01-10	Opposition filedOppositionORIGINAL CODE: 0009260PLBI	PLBI	EP
1997-01-08	Examination of admissibility of oppositionOppositionORIGINAL CODE: EPIDOS OPEXPLAV	PLAV	EP
1997-01-08	Unpublished change to opponent dataORIGINAL CODE: EPIDOS OPPOPLBQ	PLBQ	EP
1996-06-14	It: translation for a ep patent filedITF	ITF	EP
1996-06-14	It: translation for a ep patent filedITF	ITF	EP
1996-05-10	Fr: translation filedET	ET	EP
1996-04-25	Corresponds to:REF	REF	EP
1996-03-20	Designated contracting statesAK	AK	EP
1996-02-02	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1993-07-28	First examination report despatched17Q	17Q	EP
1990-12-05	Designated contracting statesAK	AK	EP
1990-10-16	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1989-10-04	Request for examination filed17P	17P	EP
1989-10-04	Designated contracting statesAK	AK	EP
1989-08-19	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Mesomorphic compound, ferroelectric liquid crystal composition containing same and ferroelectric liquid crystal device

Abstract

Term

Priority claims12

Members146

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Titles3

Classification

Designated states1