US2946662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alkali metal hydrides
Assignee: Callery Chemical Co
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Filing: 1955-06-03
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Granted: 1960-07-26
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Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
- 👤 Neal J Mosely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:07
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A METHOD OF PREPARING ALKALI METAL HYDRIDES IN WHICH AN ALKALI METAL MIXED WITH A FINELY DIVIDED INERT SOLID IS REACTED WITH HYDROGEN AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID ALKALI METAL, THE IMPROVEMENT COMPRISING CARRYING OUT SAID REACTION IN THE PRESENCE OF PHENOL IN A SMALL AMOUNT EFFECTIVE TO CATALYZE SAID REACTION.
Claim 2
Dependent Claim
56 words
IN A METHOD OF PREPARING ALKALI METAL HYDRIDES IN WHICH AN ALKALI METAL MIXED WITH A FINELY DIVIDED INERT SOLID IS REACTED WITH HYDROGEN AT A TEMPERATURE ABOVE THE MELTING POINT OF SAID ALKALI METAL, THE IMPROVEMENT COMPRISING CARRYING OUT SAID REACTION IN THE PRESENCE OF PHENOL IN A SMALL AMOUNT EFFECTIVE TO CATALYZE SAID REACTION.
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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |