US3321286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered fuel cell electrodes of metal and activated carbon
Assignee: Union Carbide Corp
•
Filing: 1963-01-11
•
Granted: 1967-05-23
•
Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Milton B Clark
- 👤 Jr William G Darland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12042; Y10T428/12146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A FUEL CELL ELECTRODE COMPRISING A DISCONTINUOUS PHASE OF ACTIVATED CARBON POWDERS DISTRIBUTED AMONG AND THROUGHOUT A SINTERED SUPPORTING METALLIC MATRIX OF SUBSTANTIALLY INERT AND CONDUCTIVE POWDERS SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, COBALT, TITANIUM AND SILVER; SAID CARBON POWDER BEING PRESENT IN AN AMOUNT BY WEIGHT OF THE MIXTURE OF FROM ABOUT 5.0% TO 50%, AND SAID METALLIC POWDERS HAVING AN AVERAGE PARTICLE SIZE OF BETWEEN 0.1 AND 40 MICRONS.
Claim 2
Dependent Claim
73 words
A FUEL CELL ELECTRODE COMPRISING A DISCONTINUOUS PHASE OF ACTIVATED CARBON POWDERS DISTRIBUTED AMONG AND THROUGHOUT A SINTERED SUPPORTING METALLIC MATRIX OF SUBSTANTIALLY INERT AND CONDUCTIVE POWDERS SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, COBALT, TITANIUM AND SILVER; SAID CARBON POWDER BEING PRESENT IN AN AMOUNT BY WEIGHT OF THE MIXTURE OF FROM ABOUT 5.0% TO 50%, AND SAID METALLIC POWDERS HAVING AN AVERAGE PARTICLE SIZE OF BETWEEN 0.1 AND 40 MICRONS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |