US3669751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric battery comprising a fuel cell hydrogen generator and heat exchanger
Assignee: PETER D RICHMAN
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Filing: 1967-03-15
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Granted: 1972-06-13
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Expires: 1987-03-15
Abstract
Abstract AN ELECTRICL BATTERY OF VERY HIGH CAPACITY PER POUND. THE PREFERRED EMBODIMENT IS A SELF-BALANCING SYSTEM HAVING A HYDROGEN-OXYGEN FUEL CELL, A CIRCULATING KOH ELECTROLYTE AND A HYDROGEN GENERATOR IN WHICH AN SI-AL MIXTURE IS REACTED WITH THE ELECTROLYTE TO PRODUCE HYDROGEN AND AN INSOLUBLE ALUMINUM SILICATE, THUS TAKING UP THE WATER GENERATED IN THE FUEL CELL. IN THE FUEL CELL THE ELECTRODES PREFERABLY HAVE A HYDROPHOBIC SURFACE ON THE GAS SIDE AND A HYDROPHILIC BUBBLE BARRIER ON THE ELECTROLYTE SIDE.
Inventors
- 👤 Peter D Richman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:10
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |