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US3640805A
Expired / Lapsed
US
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Removal of nitrate contamination from nickel-plating solutions
Assignee: United States Atomic Energy Commission
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Filing: 1969-06-13
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Granted: 1972-02-08
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Expires: 1989-06-13
Abstract
Abstract A nitrate-contaminated nickel-plating bath is purified by heating the bath to between 65* and 70* C., agitating the bath and electrolyzing the bath while providing a 10 to 20 fold greater cathode area than anode area.
Inventors
- 👤 James T Knight
- 👤 Parley L Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:36
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/16; C25D21/18; Y; Y10; Y10S; Y10S204/00; Y10S204/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1212062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |