US3598656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell utilizing apertured metal foil electrodes
Assignee: Texas Instruments Inc
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Filing: 1969-03-13
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Granted: 1971-08-10
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Expires: 1989-03-13
Abstract
Abstract A FUEL CALL HAVING A PAIR OF FORAMINOUS ELECTRODES WHEREIN ONE OF THE ELCTRODES INCLUDES APERTURED METAL FOIL BONDED TO AN EXPANDED METAL SUPPROT.
Inventors
- 👤 Isaac Trachtenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:43
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9041; H01M4/88; H01M4/8825; H01M4/8853; H01M2004/8678; H01M2004/8689; H01M8/00; H01M8/14; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
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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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |