US3791945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of production of alkali metals and their alloys
Assignee: United States Atomic Energy Commission
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Filing: 1973-02-22
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Granted: 1974-02-12
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Expires: 1993-02-22
Abstract
Abstract AN IMPURE AMALGAM OF AN ALKALI METAL OR MIXTURE THEREOF IS PRODUCED BY ELECTROLYTIC CELL CONTAINING PROPYLENE TRANSFERRED TO AN ELECTROLYTIC CELL CONTAINING PROPYLENE CARBONATE WITH AN APPROPRIATE SALT (OR SALTS) OF THE ALKALI METAL (OR METAL), E.G. OF CLO4-, BF4-, PF6-, CL-, BR-, I-, WITH OR WITHOUT ADDED ALCL3. THEN, WITH APPROPRIATE VOLTAGE, CURRENT AND OTHER CONDITIONS, ONE OR MORE SELECTED ALKALI METALS IS ANODICALLY DISSOLVED TO YIELD A PURE METAL OR SELECTED METAL MIXTURE BY ELECTRODEPOSITION.
Inventors
- 👤 C Tobias
- 👤 J Jorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:20
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |