US3554806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat activated cell with alkali anode and alkali salt electrolyte
Assignee: National Aeronautics and Space Administration
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Filing: 1968-12-30
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Granted: 1971-01-12
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Expires: 1988-12-30
Abstract
Abstract A HEAT ACTIVATED CELL HAVING AN ANODE MADE OF ONE OR MORE ALKALI METALS AND A CATHODE MADE OF AN OXIDIZING MATERIAL WHICH WILL REACT WITH THE ANODE TO FORM A STABLE SALT. THE ANODE AND CATHODE ARE SEPARATED BY AN ALKALI SALT ELECTROLYTE DEPOSITED IN A THIN LAYER ON A DIVIDER MADE OF A POROUS ELECTRICALLY CONDUCTIVE MATERIAL. THE SALT IS HEATED TO A TEMPERATURE SUFFICIENTLY BELOW ITS MELTING TEMPERATURE THAT IT DOES NOT DISINTEGRATE.
Inventors
- 👤 Jacob Greenberg
- 👤 Thomas E Seitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:49
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |