DE3678504D1 - FERROELECTRIC SMECT LIQUID CRYSTAL MATERIALS BASED ON TERPENOID DERIVATIVES. - Google Patents

FERROELECTRIC SMECT LIQUID CRYSTAL MATERIALS BASED ON TERPENOID DERIVATIVES.

Info

Publication number: DE3678504D1
Authority: DE; Germany
Prior art keywords: ferroelectric; liquid crystal; materials based; crystal materials; terpenoid derivatives
Prior art date: 1985-01-26
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

DE8686900815T

Other languages

German (de)

Inventor

David Coates

William Gray

David Lacey

James Young

Johnson Toyne

Francis Bone

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

UK Secretary of State for Defence

Original Assignee

STC PLC

UK Secretary of State for Defence

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1985-01-26

Filing date

1986-01-24

Publication date

1991-05-08

1985-01-26 Priority claimed from GB08501999A external-priority patent/GB2170214A/en

1986-01-24 Application filed by STC PLC, UK Secretary of State for Defence filed Critical STC PLC

1991-05-08 Application granted granted Critical

1991-05-08 Publication of DE3678504D1 publication Critical patent/DE3678504D1/en

2006-01-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB08501999A GB2170214A (en)	1985-01-26	1985-01-26	Ferroelectric smectic liquid crystal mixture
PCT/GB1986/000046 WO1986004328A1 (en)	1985-01-26	1986-01-24	Terpenoid derivatives and liquid crystal materials and devices containing them

Publications (1)

Publication Number	Publication Date
DE3678504D1 true DE3678504D1 (en)	1991-05-08

Family

ID=26288720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686900815T Expired - Lifetime DE3678504D1 (en)	1985-01-26	1986-01-24	FERROELECTRIC SMECT LIQUID CRYSTAL MATERIALS BASED ON TERPENOID DERIVATIVES.

Country Status (1)

Country	Link
DE (1)	DE3678504D1 (en)

1986
- 1986-01-24 DE DE8686900815T patent/DE3678504D1/en not_active Expired - Lifetime

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Legal Events

Date	Code	Title	Description
1992-01-09	8327	Change in the person/name/address of the patent owner	Owner name: THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNI
1992-01-09	8328	Change in the person/name/address of the agent	Free format text: SCHROETER, H., DIPL.-PHYS. FLEUCHAUS, L., DIPL.-ING. LEHMANN, K., DIPL.-ING., 8000 MUENCHEN WEHSER, W., DIPL.-ING., 3000 HANNOVER GALLO, W., DIPL.-ING. (FH), PAT.-ANWAELTE, 8900 AUGSBURG
1992-04-30	8364	No opposition during term of opposition
2004-11-11	8339	Ceased/non-payment of the annual fee