US3585079A
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Fuel cell electrodes having a polymeric metal-containing or metal-free phthalocyanine catalyst
Assignee: Siemens AG
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Filing: 1968-11-14
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Granted: 1971-06-15
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Expires: 1988-11-14
Abstract
Abstract A FUEL CELL COMPRISING AN ANODIC AND A CATHODIC ELECTRODE FOR CONVERTING HYDROGEN AND OXYGEN INTO FUEL ELEMENTS. THE ELECTRODES ARE CHARACTERIZED IN THAT THEY ARE COMPLETELY OR PARTLY COMPRISED OF POLYMERIC METAL-CONTAINING AND/OR METAL-FREE PHTHALOCYANINE, WHICH MAY BE SUBSTITUTED IN THE CORE.
Inventors
- 👤 Gerhard Richter
- 👤 Herbert Cnobloch
- 👤 Hans-Joachim Henkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9008; 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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |