Patent US2739933A successfully refreshed from Google Patents.
US2739933A
Expired / Lapsed
US
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Electrodeposition of ternary alloys
Assignee: Westinghouse Electric Corp
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Filing: 1953-07-10
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Granted: 1956-03-27
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Expires: 1973-07-10
Abstract
No abstract record available.
Inventors
- 👤 Ceresa Myron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:26
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN AN AQUEOUS ALKALI CYANIDE PLATING SOLUTION FOR ELECTRO-DEPOSITING A TERNARY ALLOY COMPOSED OF FROM 50% TO 75% COPPER, 15% TO 35% TIN, AND 5% TO 20% ZINC ON A METALLIC BASE MEMBER, AN ORGANIC BRIGHTENER COMPRISING 1-ACETYL-2-THIOHYDANTOIN ADMIXED WITH THE SOLUTION IN AN AMOUNT OF FROM 0.0005 OZ. TO 0.5 OZ. PER GALLON OF SOLUTION.
Claim 2
Dependent Claim
56 words
IN AN AQUEOUS ALKALI CYANIDE PLATING SOLUTION FOR ELECTRO-DEPOSITING A TERNARY ALLOY COMPOSED OF FROM 50% TO 75% COPPER, 15% TO 35% TIN, AND 5% TO 20% ZINC ON A METALLIC BASE MEMBER, AN ORGANIC BRIGHTENER COMPRISING 1-ACETYL-2-THIOHYDANTOIN ADMIXED WITH THE SOLUTION IN AN AMOUNT OF FROM 0.0005 OZ. TO 0.5 OZ. PER GALLON OF SOLUTION.
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) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |