US3672995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolyte for electrical cells
Assignee: Dow Chemical Co
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Filing: 1969-05-08
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Granted: 1972-06-27
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Expires: 1989-05-08
Abstract
Abstract AN IMPROVED ELECTROLYTE-SEPARATOR IS PROVIDED FOR LIQUID ANODE/LIQUID CATHODE CELLS WHEREIN ITS FUNCTION IS TO CONDUCT CATIONS OF THE ANODE MATERIAL WITHOUT TRANSMITTING ELECTRONS. THE ELECTROLYTE-SEPARATOR IS AN IMPREGNATED GLASS OR CERAMIC, OPEN MATRIX WHEREIN THE DISCONTINUOUS OR DISPERSE PHASE IS AN ESSENTIALLY NON-MIGRATING, CATION-CONDUCTING SALT. SUCH IMPREGNATED MATRIXES ARE PARTICULARLY USEFUL IN BATTERIES HAVING MOLTEN ALKALI METAL ANODES AND ALKALI METAL SULFUR MIXTURES FOR CATHODES.
Inventors
- 👤 William E Brown
- 👤 Robert G Heitz
- 👤 Charles A Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:01
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; H01M10/3918; H01M6/00; H01M6/14; H01M6/18; H01M6/20; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |