US3146209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel oxide-aluminohydride compositions
Assignee: Wyeth Holdings LLC
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Filing: 1960-11-03
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Granted: 1964-08-25
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Expires: 1980-11-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Byrne
- 👤 Stephen F Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J21/00; B01J21/02; B01J21/04; C; C01; C01B; C01B6/00; B01J2231/00; B01J2231/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
A METAL OXIDE GEL CONTAINING ALUMINOHYDRIDE BOUND TO THE SURFACE.
Claim 2
Dependent Claim
10 words
A METAL OXIDE GEL CONTAINING ALUMINOHYDRIDE BOUND TO THE SURFACE.
Claim 3
Dependent Claim
50 words
A PROCESS FOR PREPARING A METAL OXIDE GEL CONTAINING ALUMINOHYDRIDE WHICH COMPRISES REACTING UNDER ANHYDROUS CONDITIONS A METAL OXIDE GEL, CONTAINING CHEMICALLY BOUND WATER AS HYDROXYL GROUPS WHICH MATERIAL IS SUBSTANTIALLY FREE OF ABSORBED WATER WITH AN ALUMINOHYDRIDE OBTAINED BY THE REACTION BETWEEN AN ANHYDROUS ALUMINUM HALIDE AND A METALLOHYDRIDE.
Claim 4
Dependent Claim
50 words
A PROCESS FOR PREPARING A METAL OXIDE GEL CONTAINING ALUMINOHYDRIDE WHICH COMPRISES REACTING UNDER ANHYDROUS CONDITIONS A METAL OXIDE GEL, CONTAINING CHEMICALLY BOUND WATER AS HYDROXYL GROUPS WHICH MATERIAL IS SUBSTANTIALLY FREE OF ABSORBED WATER WITH AN ALUMINOHYDRIDE OBTAINED BY THE REACTION BETWEEN AN ANHYDROUS ALUMINUM HALIDE AND A METALLOHYDRIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |