US3766024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic bath for electroplating zinc
Assignee: JFE Engineering Corp
•
Filing: 1972-10-11
•
Granted: 1973-10-16
•
Expires: 1992-10-11
Abstract
Abstract The acidic bath for electroplating zinc comprises an aqueous solution of 200 to 650 g/l of zinc sulfate, 50 to 200 g/l of zinc chloride, 10 to 70 g/l of ammonium chloride, 5 to 30 g/l of sodium succinate, and 0.1 to 10 g/l of nicotinic acid amide and/or 0.01 to 0.1 g/l of ethoxylated- Alpha -naphthol sulphonic acid.
Inventors
- 👤 H Yamagishi
- 👤 T Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
A method of electroplating zinc comprising electroplating zinc at a current density of from 10 A/dm2 to 100 A/dm2 at a cathode immersed in the bath of claim 1.
References Cited (Backward Citations)
US3669854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |