US4633012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal compound
Assignee: Seiko Instruments Inc
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Filing: 1985-06-10
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Granted: 1986-12-30
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Expires: 2005-06-10
Abstract
Abstract A liquid crystal compound represented by the following general formula: <IMAGE> wherein m is a number from 0 to 10, n is a number from 5 to 14, and C having an asterisk indicates an asymmetric carbon atom.
Inventors
- 👤 Masaaki Taguchi
- 👤 Takamasa Harada
- 👤 Hitoshi Suenaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:37
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
38 words
A liquid crystal compound represented by the following general formula: ##STR19## wherein m is a number from 0 to 10, n is a number from 5 to 14, and C having an asterisk indicates an asymmetric carbon atom.
Claim 2
Dependent Claim
38 words
A liquid crystal compound represented by the following general formula: ##STR19## wherein m is a number from 0 to 10, n is a number from 5 to 14, and C having an asterisk indicates an asymmetric carbon atom.
Claim 3
Dependent Claim
24 words
A liquid crystal compound as claimed in claim 1, wherein m is 0 or 1 and n is a number from 8 to 11.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |