US2656243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stabilizing alkali metal and alkaline earth metal aluminum hydrides
Assignee: Metal Hydrides Inc
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Filing: 1951-08-03
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Granted: 1953-10-20
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Expires: 1971-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bragdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:09
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE METHOD FOR PRODUCING AND STABILIZING A PRODUCT SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL ALUMINUM HYDRIDE AND AN ALKALINE EARTH METAL ALUMINUM HYDRIDE WHICH COMPRISES REACTING A METAL HYDRIDE SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL HYDRIDE AND AN ALKALINE EARTH METAL HYDRIDE WITH AN ALUMINUM HALIDE IN SOLUTION IN DIETHYL ETHER THEREBY OBTAINING A SOLUTION OF SAID PRODUCT CONTAINING A SOLID BY-PRODUCT, REMOVING SAID SOLID FROM SAID SOLUTION, THEREAFTER REMOVING THE DIETHYL ETHER FROM SAID SOLUTION TO OBTAIN SAID PRODUCT IN CONTACT WITH AN ETHER SELECTED FROM THE GROUP CONSISTING OF DIMETHYL CELLOSOLVE, DIETHYL CELLOSOLVE, THERERBY STABILIZING SAID PRODUCT FOR STORAGE.
Claim 2
Independent Claim
107 words
THE METHOD FOR PRODUCING AND STABILIZING A PRODUCT SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL ALUMINUM HYDRIDE AND AN ALKALINE EARTH METAL ALUMINUM HYDRIDE WHICH COMPRISES REACTING A METAL HYDRIDE SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL HYDRIDE AND AN ALKALINE EARTH METAL HYDRIDE WITH AN ALUMINUM HALIDE IN SOLUTION IN DIETHYL ETHER THEREBY OBTAINING A SOLUTION OF SAID PRODUCT CONTAINING A SOLID BY-PRODUCT, REMOVING SAID SOLID FROM SAID SOLUTION, THEREAFTER REMOVING THE DIETHYL ETHER FROM SAID SOLUTION TO OBTAIN SAID PRODUCT IN CONTACT WITH AN ETHER SELECTED FROM THE GROUP CONSISTING OF DIMETHYL CELLOSOLVE, DIETHYL CELLOSOLVE, THERERBY STABILIZING SAID PRODUCT FOR STORAGE.
References Cited (Backward Citations)
US2576311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |