Patent US3567756A successfully refreshed from Google Patents.
US3567756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of lower trialkoxy silanes
Assignee: Evonik Operations GmbH
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Filing: 1968-09-04
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Granted: 1971-03-02
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Expires: 1988-09-04
Abstract
Abstract ALOXY SILANES ARE PRODUCED BY REACTING SILICOCHLORO FORM WITH THE CORRESPONDING ALKANOLS IN ARMATIC SOLVENTS AT TEMPERATURES BETWEEN-40 AND 90*C. WHILE CONTINUOUSLY PASSING AN INERT GAS THROUGH THE REACTION MIXTURE TO REMOVE THE HC1 FORMED.
Inventors
- 👤 Wilfried Rothe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/025
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |