Patent US3018232A successfully refreshed from Google Patents.
US3018232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition agent for cyanide plating baths
Assignee: Westinghouse Electric Corp
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Filing: 1958-06-05
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Granted: 1962-01-23
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Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bishoff
- 👤 Jr Richard P Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:54
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR PREPARING A METAL ELECTRODEPOSITION SOLUTION WHICH COMPRISES MIXING TOGETHER IN AN AQUEOUS MEDIUM A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF GOLD, SILVER, COPPER, BRONZE, BRASS, ZINC AND CADMIUM, AN ALKALI CYANIDE IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST ABOUT 0.5 OUNCE PER GALLON OF ALKALI HYDROXIDE AND FREE CYANIDE, AND FROM 0.005 TO 0.5 OUNCE PER GALLON OF THE PRODUCT OBTAINED BY REACTING SUBSTANTIALLY EQUIMOLAR QUANTITIES OF AT LEAST ONE COMPOUND HAVING THE NUCLEUS
Claim 2
Dependent Claim
83 words
A PROCESS FOR PREPARING A METAL ELECTRODEPOSITION SOLUTION WHICH COMPRISES MIXING TOGETHER IN AN AQUEOUS MEDIUM A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF GOLD, SILVER, COPPER, BRONZE, BRASS, ZINC AND CADMIUM, AN ALKALI CYANIDE IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST ABOUT 0.5 OUNCE PER GALLON OF ALKALI HYDROXIDE AND FREE CYANIDE, AND FROM 0.005 TO 0.5 OUNCE PER GALLON OF THE PRODUCT OBTAINED BY REACTING SUBSTANTIALLY EQUIMOLAR QUANTITIES OF AT LEAST ONE COMPOUND HAVING THE NUCLEUS
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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |