US3655709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of arylchlorosilanes in accordance with the rochow synthesis
Assignee: Bayer AG
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Filing: 1970-09-14
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Granted: 1972-04-11
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Expires: 1990-09-14
Abstract
Abstract IN THE MANUFACTURE OF ARYLCHLOROSILANES IN ACCORDANCE WITH THE ROCHOW SYNTHESIS BY REACTION OF ARYL HALIDES WITH SILICON, THE RECTION PRODUCTS LEAVING THE REACTION VESSEL ARE COMPLETELY CONDENSED, AND THE CONDENSATE, CONTAINING SOLIDS, IS SEPARATED BY MEANS OF A DECANTER INTO A LIQUID PHASE FREE OF SOLIDS AND A SOLID LARGELY FREE OF LIQUID, WITH THE LIQUID PHASE BEING WORKED-UP IN ACCORDANCE WITH PROCESSES WHICH ARE IN THEMSELVES KNOWN.
Inventors
- 👤 Ludwig Fries
- 👤 Rudolf Mundil
- 👤 Herbert Wiechers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:37
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16; C07F7/20
Claims Analysis
Total Claims: 0
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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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |