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Patent US4623741A successfully refreshed from Google Patents.
US4623741A
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Chlorosilane compounds
Assignee: Momentive Performance Materials Japan LLC
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Filing: 1986-01-24
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Granted: 1986-11-18
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Expires: 2006-01-24
Abstract
Abstract An ethylidenenorbornyl group-containing chlorosilanes compound represented by the general formula: Ya(R1)bSi(Cl)4-a-b wherein R1 stands for a saturated or unsaturated monovalent hydrocarbon group of 1 to 8 carbon atoms, Y for <IMAGE> or <IMAGE> a for an integer of the value of 1 to 3, b for an integer of the value of 0 to 2, and a+b for an integer of the value of 1 to 3.
Inventors
- 👤 Junichiro Watanabe
- 👤 Yuichi Funahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:04
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
An ethylidenenorbornyl group-containing chlorosilane compound represented by the general formula: Y.sub.a (R.sup.1).sub.b Si(Cl).sub.4-a-b wherein R 1 stands for a saturated or unsaturated monovalent hydrocarbon group of 1 to 8 carbon atoms, Y for ##STR15## a for an integer of the value of 1 to 3, b for an integer of the value of 0 to 2, and a+b for an integer of the value of 1 to 3.
Claim 2
Dependent Claim
68 words
An ethylidenenorbornyl group-containing chlorosilane compound represented by the general formula: Y.sub.a (R.sup.1).sub.b Si(Cl).sub.4-a-b wherein R 1 stands for a saturated or unsaturated monovalent hydrocarbon group of 1 to 8 carbon atoms, Y for ##STR15## a for an integer of the value of 1 to 3, b for an integer of the value of 0 to 2, and a+b for an integer of the value of 1 to 3.
References Cited (Backward Citations)
US4297499A
Cited
US4408017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |