Patent US2773818A successfully refreshed from Google Patents.
US2773818A
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Alkaline nickel plating solution
Assignee: Harshaw Chemical Co
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Filing: 1954-05-20
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Granted: 1956-12-11
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Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 Paul W Moy
- 👤 Rose Arthur H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:46
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12; C25D3/14; C25D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN AQUEOUS, ALKALINE NICKEL PLATING SOLUTION COMPRISING A NICKEL COMPOUND OF THE CLASS CONSISTING OF NICKEL CHLORIDE, NICKEL SULFATE AND MIXTURES THEREOF MOLECULARLY EQUIVALENT TO 75 TO 250 GRAMS PER LITER OF NICKEL SULFATE HEXAHYDRATE, A COMPLEXING AGENT IN CONCENTRATION FROM 25 TO 175 GRAMS PER LITER, SAID COMPLEXING AGENT BEING A POLYALKANOIC ACID DERIVATIVE OF A POLYALKYLENE AMINE SOLUBLE IN THE SOLUTION, AND A POLYALKANOL AMINE STABILIZER PRESENT IN CONCENTRATION FROM 25 TO 200 GRAMS PER LITER, THE PH OF SAID SOLUTION BEING IN RANGE FROM 6.5 TO 12.
Claim 2
Dependent Claim
90 words
AN AQUEOUS, ALKALINE NICKEL PLATING SOLUTION COMPRISING A NICKEL COMPOUND OF THE CLASS CONSISTING OF NICKEL CHLORIDE, NICKEL SULFATE AND MIXTURES THEREOF MOLECULARLY EQUIVALENT TO 75 TO 250 GRAMS PER LITER OF NICKEL SULFATE HEXAHYDRATE, A COMPLEXING AGENT IN CONCENTRATION FROM 25 TO 175 GRAMS PER LITER, SAID COMPLEXING AGENT BEING A POLYALKANOIC ACID DERIVATIVE OF A POLYALKYLENE AMINE SOLUBLE IN THE SOLUTION, AND A POLYALKANOL AMINE STABILIZER PRESENT IN CONCENTRATION FROM 25 TO 200 GRAMS PER LITER, THE PH OF SAID SOLUTION BEING IN RANGE FROM 6.5 TO 12.
References Cited (Backward Citations)
DE731102C
Cited
US2678910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |