US3099587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cells
Assignee: National Research Development Corp UK
•
Filing: 1959-11-23
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Granted: 1963-07-30
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Chambers Hubert Harold
- 👤 Tantram Anthony Desmond Shand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:34
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/14; H01M8/144; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A FUEL CELL IN WHICH THE ELECTROLYTE IS COMPOSED OF TJE FLUORIDE OF AT LEAST ONE METAL, SAID ELECTROLYTE BEING MOLTEN AT THE NORMAL OPERATING TEMPERATURE OF THE CELL, AND SAID FLUORIDE ELECTROLYTE CONTAINING WHEN MOLTEN AT LEAST ONE IONICCC METAL OXIDE IN SOLUTION THEREIN, SAID METAL OXIDE PROVIDING FREE OXYGEN IONS IN THE MOLTEN ELECTROLYTE.
Claim 2
Dependent Claim
56 words
A FUEL CELL IN WHICH THE ELECTROLYTE IS COMPOSED OF TJE FLUORIDE OF AT LEAST ONE METAL, SAID ELECTROLYTE BEING MOLTEN AT THE NORMAL OPERATING TEMPERATURE OF THE CELL, AND SAID FLUORIDE ELECTROLYTE CONTAINING WHEN MOLTEN AT LEAST ONE IONICCC METAL OXIDE IN SOLUTION THEREIN, SAID METAL OXIDE PROVIDING FREE OXYGEN IONS IN THE MOLTEN ELECTROLYTE.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |