US4965387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triorganosilylmethyl esters of α-trifluoromethylacrylic acid
Assignee: Shin-Etsu Chemical Co Ltd
•
Filing: 1990-03-22
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Granted: 1990-10-23
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Expires: 2010-03-22
Abstract
Abstract A novel organosilicon compound of the following formula <IMAGE> wherein R1, R2 and R3, respectively, represent a monovalent hydrocarbon group having from 1 to 8 carbon atoms, is described.
Inventors
- 👤 Toshio Shinohara
- 👤 Masatoshi Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:28
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
31 words
An organosilicon compound of the following formula ##STR6## wherein R 1 , R 2 and R 3 , respectively, represent a monovalent hydrocarbon group having from 1 to 8 carbon atoms.
Claim 2
Dependent Claim
31 words
An organosilicon compound of the following formula ##STR6## wherein R 1 , R 2 and R 3 , respectively, represent a monovalent hydrocarbon group having from 1 to 8 carbon atoms.
Claim 3
Dependent Claim
22 words
An organosilicon compound according to claim 1, wherein R 1 , R 2 and R 3 , respectively, represent a methyl group.
References Cited (Backward Citations)
US4503208A
Cited
US4558111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |