US2980749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell and method of producing electrodes for such a cell
Assignee: Individual
•
Filing: 1958-09-11
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Granted: 1961-04-18
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Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 Gerard H J Broers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:19
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9041; H01M4/8605; H01M4/8621; H01M8/00; H01M8/04; H01M8/04007; H01M8/04014; H01M8/14; H01M8/141; H01M8/142; H01M8/24; H01M8/2465; H01M8/247; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; H01M8/04082; H01M8/04089; H01M8/249; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
IN A FUEL CELL A SOLID POROUS CARRIER OF FROM ABOUT 1 MM. TO ABOUT 10 MM. IN THICKNESS IMPREGNATED WITH A MOLTEN MIXTURE OF ALKALI METAL CARBONATES AS A SEMISOLID ELECTROLYTE HAVING ATTACHED TO EACH OF ITS SIDES A
Claim 2
Dependent Claim
40 words
IN A FUEL CELL A SOLID POROUS CARRIER OF FROM ABOUT 1 MM. TO ABOUT 10 MM. IN THICKNESS IMPREGNATED WITH A MOLTEN MIXTURE OF ALKALI METAL CARBONATES AS A SEMISOLID ELECTROLYTE HAVING ATTACHED TO EACH OF ITS SIDES A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |