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Patent US2694019A successfully refreshed from Google Patents.
US2694019A
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Processes of chemical nickel plating and baths therefor
Assignee: General American Transportation Corp
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Filing: 1952-04-23
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Granted: 1954-11-09
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Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 Gutzeit Gregoire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:59
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE PROCESS OF CHEMICALLY PLATING WITH NICKEL A SOLID BODY ESSENTIALLY COMPRISING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER, GOLD, ALUMINUM, IRON, COBALT, NICKEL, PALLADIUM AND PLATINUM, WHICH COMPRISES CONTACTING SAID BODY WITH A BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A NICKEL SALT AND A HYPOPHOSPHITE AND A SALT OF A SIMPLE SHORT CHAIN SATURATED ALIPHATIC DICARBOXYLIC ACID AND A FLUORIDE, WHEREIN THE ABSOLUTE CONCENTRATION OF FLUORIDE IONS IN SAID BATH EXPRESSED IN MOLE/LITER IS BETWEEN 0.01 AND 0.12
Claim 2
Dependent Claim
84 words
THE PROCESS OF CHEMICALLY PLATING WITH NICKEL A SOLID BODY ESSENTIALLY COMPRISING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER, GOLD, ALUMINUM, IRON, COBALT, NICKEL, PALLADIUM AND PLATINUM, WHICH COMPRISES CONTACTING SAID BODY WITH A BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A NICKEL SALT AND A HYPOPHOSPHITE AND A SALT OF A SIMPLE SHORT CHAIN SATURATED ALIPHATIC DICARBOXYLIC ACID AND A FLUORIDE, WHEREIN THE ABSOLUTE CONCENTRATION OF FLUORIDE IONS IN SAID BATH EXPRESSED IN MOLE/LITER IS BETWEEN 0.01 AND 0.12
References Cited (Backward Citations)
US2532283A
Cited
US2580773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |