US2887502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alkyl chlorosilanes
Assignee: General Electric Co
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Filing: 1957-06-13
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Granted: 1959-05-19
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Expires: 1977-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ben A Bluestein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE METHOD WHICH COMPRISES EFFECTING REACTION AT A TEMPERATURE OF FROM 250* TO 500* C. BETWEEN SILICON AND THE METHYL CHLORIDE COMPONENT OF A MIXTURE COMPRISING METHYL CHLORIDE AND A TERTIARY ALKYL CHLORIDE, THE SAID REACTION BEING CARRIED OUT IN THE PRESENCE OF COPPER AS A CATALYST.
Claim 2
Independent Claim
47 words
THE METHOD WHICH COMPRISES EFFECTING REACTION AT A TEMPERATURE OF FROM 250* TO 500* C. BETWEEN SILICON AND THE METHYL CHLORIDE COMPONENT OF A MIXTURE COMPRISING METHYL CHLORIDE AND A TERTIARY ALKYL CHLORIDE, THE SAID REACTION BEING CARRIED OUT IN THE PRESENCE OF COPPER AS A CATALYST.
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |