US2737485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of copper
Assignee: Motors Liquidation Co
•
Filing: 1952-09-22
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Granted: 1956-03-06
•
Expires: 1972-09-22
Abstract
No abstract record available.
Inventors
- 👤 Dwight M Overcash
- 👤 Richard B Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/54; C25D3/38; C25D3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A COPPER PLATING ELECTROLYTE WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS CYANIDE TYPE COPPER PLATING SOLUTION TO WHICH IS ADDED ZINC WITHIN THE RANGE OF 0.05 TO 0.15 OUNCE PER GALLON OF SOLUTION, LEAD WITHIN THE RANGE OF 0.0005 TO 0.002 OUNCE PER GALLON OF SOLUTION, SELENIUM 0.0005 TO 0.002 OUNCE PER GALLON OF SOLUTION, DI-POTASSIUM TARTRATE WITHIN THE RANGE OF FROM 0.1 TO 5 OUNCES PER GALLON AND A QUATERNARY AMINE IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 CCS. PER GALLON OF SOLUTION.
Claim 2
Dependent Claim
86 words
A COPPER PLATING ELECTROLYTE WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS CYANIDE TYPE COPPER PLATING SOLUTION TO WHICH IS ADDED ZINC WITHIN THE RANGE OF 0.05 TO 0.15 OUNCE PER GALLON OF SOLUTION, LEAD WITHIN THE RANGE OF 0.0005 TO 0.002 OUNCE PER GALLON OF SOLUTION, SELENIUM 0.0005 TO 0.002 OUNCE PER GALLON OF SOLUTION, DI-POTASSIUM TARTRATE WITHIN THE RANGE OF FROM 0.1 TO 5 OUNCES PER GALLON AND A QUATERNARY AMINE IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 CCS. PER GALLON OF SOLUTION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |