US3328206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic electrode for fuel cells and method for its manufacture
Assignee: VARTA AG
•
Filing: 1961-05-23
•
Granted: 1967-06-27
•
Expires: 1981-05-23
Abstract
No abstract record available.
Inventors
- 👤 Hanns H Kroeger
- 👤 Jung Margarete
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:19
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF PREPARING A CATALYTICALLY ACTIVE FUEL CELL ELECTRODE, COMPRISING THE STEPS OF PASSING A SOLUTION OF A SALT OF A CATALYTICALLY ACTIVE METAL THROUGH AT LEAST A PORTION OF A CATION EXCHANGE CARRIER BODY TO DISTRIBUTE METALLIC IONS THROUGHOUT SAID PORTION AND REDUCING THE
Claim 2
Independent Claim
46 words
THE METHOD OF PREPARING A CATALYTICALLY ACTIVE FUEL CELL ELECTRODE, COMPRISING THE STEPS OF PASSING A SOLUTION OF A SALT OF A CATALYTICALLY ACTIVE METAL THROUGH AT LEAST A PORTION OF A CATION EXCHANGE CARRIER BODY TO DISTRIBUTE METALLIC IONS THROUGHOUT SAID PORTION AND REDUCING THE
References Cited (Backward Citations)
US3085072A
Cited
US1988661A
Cited
US2283883A
Cited
US2737541A
Cited
US2708683A
Cited
US2860175A
Cited
US2977401A
Cited
US2963447A
Cited
US2935547A
Cited
US2952643A
Cited
US3012937A
Cited
US3099608A
Cited
US3032600A
Cited
US3097116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |