US2774688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel plating by chemical reduction
Assignee: Individual
•
Filing: 1954-06-01
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Granted: 1956-12-18
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Robert J Girard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:49
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A METHOD FOR NICKEL PLATING BY CHEMICAL REDUCTION COMPRISING TH STEP OF IMMERSING A METAL ARTICLE FROM THE GROUP CONSISTING OF IRON, PLATINUM, SILVER, GOLD, COPPER, PALLADIUM, BRASS, BRONZE AND TITANIUM INTO A CONTROLLED NICKEL SULPHATE SOLUTION INCLUDING THE FOLLOWING CONSTITUENTS IN THE FOLLOWING AMOUNTS PER LITRE, NICKEL SULPHATE ABOUT 80 GRAMS/1., SODIUM HYPOPHOSPHITE ABOUT 24 GRAMS/1., SODIUM ACETATE ABOUT 12GRAMS/1., BORIC ACID ABOUT 8 GRAMS/1., AND AMMONIUM CHLORIDE ABOUT 6 GRAMS/ 1., AT A TEMPERATURE OF BETWEEN 196* F. AND 204 * F.
References Cited (Backward Citations)
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Cited
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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) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |