US3554803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell designed for efficient stacking
Assignee: Studebaker Corp
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Filing: 1967-08-24
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Granted: 1971-01-12
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Expires: 1987-08-24
Abstract
Abstract A FUEL CELL BATTERY HAVING A PLURALITY OF UNITIZED DUPLEX FUEL CELLS, EACH BEING COMPRISED OF CONVENTIONAL FUEL CELL ELEMENTS. THE UNITIZED DUPLEX CELLS ARE MOUNTED IN THE BATTERY SUCH THAT EACH CELL OPERATES INDEPENDENTLY OF ALL OTHER CELLS IN THE BATTERY. A FLUID CIRCULATES INSIDE EACH DUPLEX CELL AND A FLUID REACTANT CIRCULATES BETWEEN ADJACENT DUPLEX CELLS, THEREBY PERMITTING EACH CELL TO BE REMOVED FOR REPAIR OF REPLACEMENT WITHOUT THE DISASSEMBLY OF THE ENTIRE BATTERY.
Inventors
- 👤 Armand R Poirier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:48
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/242; H01M8/02; H01M8/0202; H01M8/0258; H01M8/0263; H01M8/2457; H01M8/249; 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) | 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 |