US3231429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for activating silvercontaining electrodes
Assignee: VARTA AG
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Filing: 1962-02-20
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Granted: 1966-01-25
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Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jung Margarete
- 👤 Hanns H Kroeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:29
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8878; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROCESS OF CATALYTICALLY ACTIVATING A POROUS ELECTRODE COMPRISING A CONDUCTIVE MATRIX AND METALLIC SILVER WHICH COMPRISES TREATING THE METALLIC SILVER-CONTAINING ELECTRODE WITH AN AQUEOUS SOLUTION CONTAINING BETWEEN ABOUT 0.1% AND ABOUT 20%, BY WEIGHT, OF AN ALKALI METAL CYANATE.
Claim 2
Dependent Claim
40 words
A PROCESS OF CATALYTICALLY ACTIVATING A POROUS ELECTRODE COMPRISING A CONDUCTIVE MATRIX AND METALLIC SILVER WHICH COMPRISES TREATING THE METALLIC SILVER-CONTAINING ELECTRODE WITH AN AQUEOUS SOLUTION CONTAINING BETWEEN ABOUT 0.1% AND ABOUT 20%, BY WEIGHT, OF AN ALKALI METAL CYANATE.
References Cited (Backward Citations)
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |