Patent US1830237A successfully refreshed from Google Patents.
Patent US3699013A successfully refreshed from Google Patents.
US3699013A
Expired / Lapsed
US
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Method of electroplating readily oxidizable metals
Assignee: JFE Engineering Corp
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Filing: 1970-08-14
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Granted: 1972-10-17
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Expires: 1990-08-14
Abstract
Abstract IN A METHOD OF ELECTROPLATING READILY OXIDIZABLE METALS AND ALLOYS, AN ARTICLE TO BE PLATED IS FIRST PICKED WITH A MIXTURE OF NITRIC ACID AND HYDROFLUORIC ACID OR A MIXTURE OF BORIC ACID AND HYDROFLUORIC ACID, IMMEDIATELY WASHED WITH AN ANHYROUS ORGANIC SOLVENT, DRIED BY AN INERT GAS OR UNDER VACUUM, DIPPED IN A PLATING BATH WITHOUT BEING EXPOSED TO THE ATMOSPHERE AND THEN AFTER A SHORT TIME ELECTROLYTICALLY PLATED.
Inventors
- 👤 Akira Miyata
- 👤 Hideyo Okubo
- 👤 Chikayoshi Tomita
- 👤 Akio Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:15
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C25; C25D; C25D5/00; C25D5/34; H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/58; H01H37/585
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |