US2666775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organosilanes by reaction of silicon with organic halides
Assignee: Wacker Chemie AG
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Filing: 1950-01-23
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Granted: 1954-01-19
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Expires: 1970-01-23
Abstract
No abstract record available.
Inventors
- 👤 Nitzsche Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE METHOD OF PREPARING ALKYLCHLOROSITANES COMPRISING EFFECTING REACTION AT AN ELEVATED TEMPERATURE BETWEEN AN ALKYL CHLORIDE AND THE SILICON COMPONENT OF AN ALLOY OF SILICON AND COPPER IN THE PRESENCE OF A PREFORMED COPPER CHLORIDE.
Claim 2
Independent Claim
35 words
THE METHOD OF PREPARING ALKYLCHLOROSITANES COMPRISING EFFECTING REACTION AT AN ELEVATED TEMPERATURE BETWEEN AN ALKYL CHLORIDE AND THE SILICON COMPONENT OF AN ALLOY OF SILICON AND COPPER IN THE PRESENCE OF A PREFORMED COPPER CHLORIDE.
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) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |