US2500761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organo-substituted halogenosilanes
Assignee: General Electric Co
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Filing: 1947-06-19
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Granted: 1950-03-14
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Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Richard N Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:53
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR PREPARING AN ORGANO-SUBSTITUTED HALOGENOSILANE WHICH COMPRISES TREATING A LIQUID ORGANOPOLYSIOXANE WHEREIN THE ORGANIC GROUPS ARE CONNECTED DIRECTLY TO SILICON ATOMS THROUGH C-SI LINKAGES, THE SAID ORGANIC GROUPS BEING SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, AND ALKARYL RADICALS, WITH A THIONLY HALIDE IN THE PRESENCE OF A CATALYST FOR THE REACTION SELECTED FROM THE CLASS CONSISTING OF (1) HYDROGEN HALIDES, (2) HALIDES OF IRON, BORON, ZINC AND TIN, AND (3) HYDRATES OF THE METAL HALIDES DISCLOSED IN (2), THEREBY TO OBTAIN A REACTION PRODUCT CONTAINING THE SAID ORGANO-SUBSTITUTED HALOGENOSILANE.
Claim 2
Dependent Claim
94 words
A PROCESS FOR PREPARING AN ORGANO-SUBSTITUTED HALOGENOSILANE WHICH COMPRISES TREATING A LIQUID ORGANOPOLYSIOXANE WHEREIN THE ORGANIC GROUPS ARE CONNECTED DIRECTLY TO SILICON ATOMS THROUGH C-SI LINKAGES, THE SAID ORGANIC GROUPS BEING SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, AND ALKARYL RADICALS, WITH A THIONLY HALIDE IN THE PRESENCE OF A CATALYST FOR THE REACTION SELECTED FROM THE CLASS CONSISTING OF (1) HYDROGEN HALIDES, (2) HALIDES OF IRON, BORON, ZINC AND TIN, AND (3) HYDRATES OF THE METAL HALIDES DISCLOSED IN (2), THEREBY TO OBTAIN A REACTION PRODUCT CONTAINING THE SAID ORGANO-SUBSTITUTED HALOGENOSILANE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |