US4786730A
Expired / Lapsed
US
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Pyrimidine compound
Assignee: Adeka Corp
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Filing: 1987-12-22
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Granted: 1988-11-22
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Expires: 2007-12-22
Abstract
Abstract The present invention discloses an optically active pyrimidine compound represented by the following general formula: ##STR1## wherein m is 1 to 12; n is 4 to 18; and *C represents an asymmetric carbon atom. The pyrimidine compound of the present invention is a liquid crystal compound useful as an electrooptic element wherein the response of the ferroelectric liquid crystal to an electric field is utilized.
Inventors
- 👤 Toshihiro Shibata
- 👤 Masaki Kimura
- 👤 Norio Kurosawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:30
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3463
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
30 words
An optically active pyrimidine compound represented by the following general formula: ##STR6## wherein m is 1 to 12; n is 4 to 18; and *C represents an asymmetric carbon atom.
Claim 2
Dependent Claim
30 words
An optically active pyrimidine compound represented by the following general formula: ##STR6## wherein m is 1 to 12; n is 4 to 18; and *C represents an asymmetric carbon atom.
Claim 3
Dependent Claim
12 words
A pyrimidine compound as set forth in claim 1, which is 2-(4-(6-chloro-4-methyloctoxy)-phenyl)-5-n-decylpyrimidine.
Claim 4
Dependent Claim
12 words
A pyrimidine compound as set forth in claim 1, which is 2-(4-(6-chloro-4-methylnonyloxy)-phenyl)-5-n-decylpyrimidine.
Claim 5
Dependent Claim
12 words
A pyrimidine compound as set forth in claim 1, which is 2-(4-(6-chloro-4-methyloctoxy)-phenyl)-5-n-octylpyrimidine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |