US3556857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell
Assignee: Onan Corp
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Filing: 1968-08-23
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Granted: 1971-01-19
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Expires: 1988-08-23
Abstract
Abstract A FUEL CELL IN WHICH THERE ARE POROUS FUEL AND OXYGEN ELECTRODES AND AN INTERPOSED POROUS MATRIX CONTAINING AN ELECTROLYTE AND IN WHICH AN EXCELL OF HYDROCARBON FLUID FUEL IS INTRODUCED INTO THE FUEL ELECTRODE COMPARTMENT AND IS FORCED THROUGH THE FUEL ELECTRODE, THE ELECTROLYTE MATRIX, AND THE OXYGEN ELECTRODE, AND OUT THROUGH AN EXHAUST PASSAGE IN THE OXYGEN ELECTRODE COMPARTMENT TO CARRY WITH IT ANY REACTION PRODUCTS OCURRING AT THE FUEL AND OXYGEN ELECTRODES.
Inventors
- 👤 Armand R Poirier
- 👤 John A Briese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:26
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; H01M8/0612; H01M8/0625; H01M8/04; H01M8/04082; H01M8/04089; H01M8/02; H01M8/0289; H01M8/0293; H01M8/04119; H01M8/04156; 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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |