Patent US3668005A successfully refreshed from Google Patents.
US3668005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the coating of electrodes
Assignee: Solvay SA
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Filing: 1971-01-11
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Granted: 1972-06-06
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Expires: 1991-01-11
Abstract
Abstract ELECTRODES COATED WITH RUTHENIUM DIOXIDE ARE MANUFACTURED BY APPLYING AN ANCHORING LAYER CONTAINING AT LEAST ONE COMPOUND OXIDZABLE BY RUTHENIUM TETROXIDE TO THE AREA OF AN ETCHED METAL SUPPORT WHEREIN THE RUTHENIUM DIOXIDE IS TO BE FIXED, EXPOSING THE THUS COATED SUPPORT TO RUTHENIUM TETROXIDE IN THE GASEOUS STATE, WHICH IS DECOMPOSED TO RUTHENIUM DIOXIDE UPON CONTACT WITH THE ANCHORING LAYER ON WHICH IT IS PREFERENTIALLY FIXED AND THEN HEATING THE THUS TREATED SUPPORT. ELECTRODES PRODUCED IN THIS MANNER HAVE AN ADHERENT COATING OF RUTHENIUM DIOXIDE WHICH IS RESISTANT TO ELECTROLYTE CORROSION AND SUPPORT HIGH CURRENT DENSITIES.
Inventors
- 👤 Guy Sluse
- 👤 Gustave Joannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:43
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/404; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B11/095; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |