Patent US3641084A successfully refreshed from Google Patents.
US3641084A
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Vinylic aluminacycloalkane compounds and their preparation
Assignee: Ethyl Corp
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Filing: 1969-05-05
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Granted: 1972-02-08
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Expires: 1989-05-05
Abstract
Abstract ORGANOLUMINUM COMPOUNDS POSSESSING A VINYLIC ALUMINA-CYCLOALKANE MOIETY ARE DESCRIBED. THESE ARE PREPARED BY RACTING A NONIONIC ORGANOALUMINUM COMPOUND POSSESSING AN ALUMINACYCLO-ALKENE MOIETY WITH AN OLEFINIC REACTION IN THE PRESENCE OF A STABLE LEWIS BASE. THE COMPOUND POSSESSING THE ALUMINACYCLOALKENE MOIETY MAY BE USED IN PREFORMED CONDITION OR IT MAY BE FORMED IN SITU DURING THE COURSE OF A ONE-STEP REACTION. THE COMPOUNDS POSSESSING THE VINYLIC ALUMIMCYCLOALKANE MOIETY YIELD ALPHA-OLEFINIC COMPOUNDS ON HYDROLYSIS.
Inventors
- 👤 Lawrence H Shepherd Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:20
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/062; C07C; C07C29/00; C07C29/48; C07C29/50; C07C29/54; C07C2602/00; C07C2602/36; C07C2602/42
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |