Patent US4167459A successfully refreshed from Google Patents.
US4167459A
Expired / Lapsed
US
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Electroplating with Ni-Cu alloy
Assignee: United States Department of the Interior
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Filing: 1979-01-08
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Granted: 1979-09-11
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Expires: 1999-01-08
Abstract
Abstract Nickel-copper alloy is plated on a metal substrate by electrodeposition of the alloy from an acetate electrolyte solution.
Inventors
- 👤 Agnes Y. Lee
- 👤 Wilbert L. Falke
- 👤 Alfred E. Schwaneke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:13
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A process for electrodeposition of nickel-copper alloy on a metallic substrate comprising: (a) providing an electrolyte bath consisting essentially of an aqueous solution of nickel acetate, copper acetate and boric acid, (b) providing in said bath a cathode consisting essentially of said metallic substrate, (c) providing in said bath an anode consisting essentially of nickel, copper or nickel-copper alloy, and (d) applying between said anode and cathode a d.c. current of sufficient magnitude and duration to form an adherent, corrosion resistant coating of nickel-copper alloy on the substrate.
Claim 2
Dependent Claim
88 words
A process for electrodeposition of nickel-copper alloy on a metallic substrate comprising: (a) providing an electrolyte bath consisting essentially of an aqueous solution of nickel acetate, copper acetate and boric acid, (b) providing in said bath a cathode consisting essentially of said metallic substrate, (c) providing in said bath an anode consisting essentially of nickel, copper or nickel-copper alloy, and (d) applying between said anode and cathode a d.c. current of sufficient magnitude and duration to form an adherent, corrosion resistant coating of nickel-copper alloy on the substrate.
Claim 3
Dependent Claim
42 words
The process of claim 1 in which the electrolyte bath contains about 75 to 200 grams per liter of nickel acetate, about 3 to 20 grams per liter of copper acetate and about 10 to 40 grams per liter of boric acid.
Claim 4
Dependent Claim
17 words
The process of claim 1 in which said metallic substrate consists essentially of aluminum or its alloys.
Claim 5
Dependent Claim
17 words
The process of claim 1 in which said metallic substrate consists essentially of magnesium or its alloys.
Claim 6
Dependent Claim
17 words
The process of claim 1 in which said metallic substrate consists essentially of zinc or its alloys.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-10 | 1983-03-12 | 1983-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-10 | 1987-03-12 | 1987-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-10 | 1991-03-12 | 1991-09-11 | $7700.00 | Window Closed / Lapsed |