Patent US2533240A successfully refreshed from Google Patents.
US2533240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organochlorosilanes and process for their production
Assignee: Individual
•
Filing: 1948-01-16
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Granted: 1950-12-12
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Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 Leo A Goldblatt
- 👤 Dorothy M Oldroyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:09
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS COMPRISING REFLUXING A MIXTURE OF A HALO-SILICON HYDRIDE, TAKEN FROM THE GROUP CONSISTING OF TRI-CHLORO-SILICON HYDRIDE AND METHYLDICHLORO-SILICON HYDRIDE, WITH A CYCLIC TERPENE HYDROCARBON HAVING AT LEAST ONE NON-AROMATIC DOUBLE BOND OF THE FORMULA C10H16, AT ABOUT 55* TO 96*C. FOR SEVERAL HOURS IN THE PRESENCE OF AN ORGANIC PEROXIDE CATALYST, AND FRACTIONALLY DISTILLING THE REACTION MIXTURE TO RECOVER A REACTION PRODUCT OF THE HALO-SILICON HYDRIDE AND SAID TERPENE HAVING A SILICON CONTENT OF AT LEAST ABOUT 7.4%.
Claim 2
Dependent Claim
80 words
A PROCESS COMPRISING REFLUXING A MIXTURE OF A HALO-SILICON HYDRIDE, TAKEN FROM THE GROUP CONSISTING OF TRI-CHLORO-SILICON HYDRIDE AND METHYLDICHLORO-SILICON HYDRIDE, WITH A CYCLIC TERPENE HYDROCARBON HAVING AT LEAST ONE NON-AROMATIC DOUBLE BOND OF THE FORMULA C10H16, AT ABOUT 55* TO 96*C. FOR SEVERAL HOURS IN THE PRESENCE OF AN ORGANIC PEROXIDE CATALYST, AND FRACTIONALLY DISTILLING THE REACTION MIXTURE TO RECOVER A REACTION PRODUCT OF THE HALO-SILICON HYDRIDE AND SAID TERPENE HAVING A SILICON CONTENT OF AT LEAST ABOUT 7.4%.
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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |