US2700646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating zinc copper alloys
Assignee: Poor and Co
•
Filing: 1951-12-07
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Granted: 1955-01-25
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Expires: 1971-12-07
Abstract
No abstract record available.
Inventors
- 👤 Allan E Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:42
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PLATING BATH COMPRISING AN ALKALINE ZINC COPPER CYANIDE BATH CONTAINING IN SOLUTION DITHIOBIURET, THE QUANTITY OF DITHIOBIURET BEING SUFFICIENT TO EXTEND THE USABLE RANGE OF CURRENT DENSITIES AT WHICH WHITE ALLOYS OF ZINC AND COPPER CAN BE ELECTRODEPOSITED FROM SAID BATH.
Claim 2
Dependent Claim
42 words
A PLATING BATH COMPRISING AN ALKALINE ZINC COPPER CYANIDE BATH CONTAINING IN SOLUTION DITHIOBIURET, THE QUANTITY OF DITHIOBIURET BEING SUFFICIENT TO EXTEND THE USABLE RANGE OF CURRENT DENSITIES AT WHICH WHITE ALLOYS OF ZINC AND COPPER CAN BE ELECTRODEPOSITED FROM SAID BATH.
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) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |