US2576311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing and hydrogenating chemical compounds by reacting with aluminum-containing hydrides
Assignee: EDNA M SCHLESINGER
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Filing: 1947-06-03
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Granted: 1951-11-27
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Expires: 1967-06-03
Abstract
No abstract record available.
Inventors
- 👤 Hermann I Schlesinger
- 👤 Albert E Finholt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:47
CPC Classifications
C; C07; C07B; C07B31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A REDUCTION OF A CHEMICAL COMPOUND CONTAINING A REDUCIBLE FUNCTIONAL GROUP INCLUDING AN ATOM OTHER THAN HYDROGEN AND CARBON, THE STEP WHICH COMPRISES ASSOCIATING THE COMPOUND WITH A MEMBER OF THE CLASS CONSISTING OF ALUMINUM HYDRIDE AND ALKALI METAL ALUMINUM HYDRIDES AT A REACTION TEMPERATURE SUFFICIENTLY LOW THAT SAID MEMBER DOES NOT SUBSTANTIALLY THERMALLY DECOMPOSE DURING THE REDUCTION.
Claim 2
Dependent Claim
59 words
IN A REDUCTION OF A CHEMICAL COMPOUND CONTAINING A REDUCIBLE FUNCTIONAL GROUP INCLUDING AN ATOM OTHER THAN HYDROGEN AND CARBON, THE STEP WHICH COMPRISES ASSOCIATING THE COMPOUND WITH A MEMBER OF THE CLASS CONSISTING OF ALUMINUM HYDRIDE AND ALKALI METAL ALUMINUM HYDRIDES AT A REACTION TEMPERATURE SUFFICIENTLY LOW THAT SAID MEMBER DOES NOT SUBSTANTIALLY THERMALLY DECOMPOSE DURING THE REDUCTION.
References Cited (Backward Citations)
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Cited
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Cited
US2109708A
Cited
US2263195A
Cited
US2427791A
Cited
US2425711A
Cited
US2427339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |