US3272728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing activated electrodes
Assignee: Pintsch Bamag AG
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Filing: 1961-10-03
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Granted: 1966-09-13
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Hahndorff Axel
- 👤 Barthel Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:10
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562; C25D3/565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A METHOD OF PRODUCING ELECTRODES FOR USE IN ELECTROLYTIC CELLS STEPS OF GALVANICALLY APPLYING TO AT LEAST A PORTION OF THE SURFACE OF A METALLIC ELECTRODE CORE AS A METALLIC SURFACE LAYER AN ALLOY CONSISTING ESSENTIALLY OF A FIRST COMPONENET CAPABEL OF REDUCING OVER-VOLTAGE AT SAID ELECTRODE, AND OF A FURTHER COMPONENT ADAPTED TO BE AT LEAST PARTIALLY DISSOLVED SO AS TO ACTIVATE SAID SURFACE LAYER BY SUCH AT LEAST PARTIAL DISSOLUTION OF SAID SECOND COMPONENT; AND DISSOLVING AT LEAST A PORTION OF SAID SECOND COMPONENT SUBSTANTIALLY WITHOUT AFFECTING SAID FIRST COMPONENT, THEREBY ACTIVATING THE THUS APPLIED METALLIC SURFACE LAYER.
Claim 2
Dependent Claim
101 words
IN A METHOD OF PRODUCING ELECTRODES FOR USE IN ELECTROLYTIC CELLS STEPS OF GALVANICALLY APPLYING TO AT LEAST A PORTION OF THE SURFACE OF A METALLIC ELECTRODE CORE AS A METALLIC SURFACE LAYER AN ALLOY CONSISTING ESSENTIALLY OF A FIRST COMPONENET CAPABEL OF REDUCING OVER-VOLTAGE AT SAID ELECTRODE, AND OF A FURTHER COMPONENT ADAPTED TO BE AT LEAST PARTIALLY DISSOLVED SO AS TO ACTIVATE SAID SURFACE LAYER BY SUCH AT LEAST PARTIAL DISSOLUTION OF SAID SECOND COMPONENT; AND DISSOLVING AT LEAST A PORTION OF SAID SECOND COMPONENT SUBSTANTIALLY WITHOUT AFFECTING SAID FIRST COMPONENT, THEREBY ACTIVATING THE THUS APPLIED METALLIC SURFACE LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |