Patent US2744810A successfully refreshed from Google Patents.
US2744810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of compounds containing boron and hydrogen
Assignee: Callery Chemical Co
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Filing: 1951-06-08
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Granted: 1956-05-08
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Carey B Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:54
CPC Classifications
C; C01; C01B; C01B6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF MAKING AN ALKALI METAL BOROHYDRIDE COMPRISING ATMOMIZING, IN A CLOSED SYSTEM, AN ALKALI METAL IN A CURRENT OF DRY HYDROGEN AT A TEMPERATURE OF ABOUT 150* TO 350* C., AND PROMPTLY REACTING THE ATOMIZED METAL WITH A MIXTURE OF DRY COOL HYDROGEN AND BORON FLUORIDE INTRODUCED INTO THE SYSTEM, SAID HYDROGEN BEING SUPPLIED IN AN AMOUNT NOT LESS THAN STOICHIOMETRIC PROPORTION AND SAID BORON FLUORIDE AND ALKALI METAL IN A STOICHIOMETRIC AMOUNT FOR THE REACTION
Claim 2
Independent Claim
78 words
A METHOD OF MAKING AN ALKALI METAL BOROHYDRIDE COMPRISING ATMOMIZING, IN A CLOSED SYSTEM, AN ALKALI METAL IN A CURRENT OF DRY HYDROGEN AT A TEMPERATURE OF ABOUT 150* TO 350* C., AND PROMPTLY REACTING THE ATOMIZED METAL WITH A MIXTURE OF DRY COOL HYDROGEN AND BORON FLUORIDE INTRODUCED INTO THE SYSTEM, SAID HYDROGEN BEING SUPPLIED IN AN AMOUNT NOT LESS THAN STOICHIOMETRIC PROPORTION AND SAID BORON FLUORIDE AND ALKALI METAL IN A STOICHIOMETRIC AMOUNT FOR THE REACTION
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |