US3654099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodic activation of stainless steel
Assignee: Bekaert NV SA
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Filing: 1970-06-10
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Granted: 1972-04-04
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Expires: 1990-06-10
Abstract
Abstract PROCESS FOR PRODUCTION OF STAINLESS STEEL ARTICLES SUCH AS, FOR EXAMPLE, STAINLESS STEEL WIRES, STRIPS, SHEETS AND THE LIKE BY ACTIVATING THE SURFACE OF A STAINLESS STEEL SUBSTRATE BY CATHODIC TREATMENT IN AN AQUEOUS ACID BATH AT HIGH CURRENT DENSITY FOLLOWED BY ELECTROPLATING THE ACTIVATED SURFACE TO PROVIDE THE DESIRED LAYER OR LAYERS OF ELECTROPLATE.
Inventors
- 👤 Eric De Bruyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:44
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/36; C25D3/00; C25D3/02; C25D3/38; G; G01; G01T; G01T5/00; G01T5/10
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |