US2636865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alumina from higher alcoholates of aluminum
Assignee: Standard Oil Development Co
•
Filing: 1948-11-19
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Granted: 1953-04-28
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Expires: 1968-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:24
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/42; C01F7/428; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; C01P; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR PRODUCING ALUMINA-CONTAINING PRODUCTS WHICH COMPRISES INTRODUCING ALUMINUM METAL AND SUBSTANTIALLY WATER-INSOLUBLE ANHYDROUS ALCOHOL INTO A REACTION ZONE TO REACT THE METAL AND ALCOHOL AND FORM A SOLUTION OF AN ALUMINUM ALCOHOLATE, REMOVING THE ALUMINUM ALCOHOLATE SOLUTION FROM SAID REACTION ZONE AND MIXING IT WITH AN EXCESS OF AN AQUEOUS MEDIUM TO HYDROLYZE THE ALUMINUM ALCOHOLTE TO FORM A SLURRY OF HYDROUS ALUMINA AND ALCOHOL, PASSING
Claim 2
Dependent Claim
68 words
A PROCESS FOR PRODUCING ALUMINA-CONTAINING PRODUCTS WHICH COMPRISES INTRODUCING ALUMINUM METAL AND SUBSTANTIALLY WATER-INSOLUBLE ANHYDROUS ALCOHOL INTO A REACTION ZONE TO REACT THE METAL AND ALCOHOL AND FORM A SOLUTION OF AN ALUMINUM ALCOHOLATE, REMOVING THE ALUMINUM ALCOHOLATE SOLUTION FROM SAID REACTION ZONE AND MIXING IT WITH AN EXCESS OF AN AQUEOUS MEDIUM TO HYDROLYZE THE ALUMINUM ALCOHOLTE TO FORM A SLURRY OF HYDROUS ALUMINA AND ALCOHOL, PASSING
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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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |