US2972571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel plating solutions
Assignee: Harshaw Chemical Co
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Filing: 1960-02-10
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Granted: 1961-02-21
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Expires: 1980-02-10
Abstract
No abstract record available.
Inventors
- 👤 Jack L Towle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:04
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN AQUEOUS ACID NICKEL PLATING SOLUTION COMPRISING A SOURCE OF NICKEL IONS SELECTED FROM THE CLASS CONSISTING OF NICKEL SULFATE, NICKEL CHLORIDE AND MIXTURES THEREOF, SAID SOLUTION ALSO CONTAINING COOPERATING ADDITIVES FOR ENHANCING THE BRIGHTNESS OF NICKEL DEPOSITS PRODUCED THEREIN, ONE OF SAID ADDITIVES BEING PRESENT IN A CONCENTRATION OF FROM 0.05 TO 20 GRAMS PER LITER AND BEING CHOSEN FROM THE CLASS CONSISTING OF AROMATIC SULFONATES, AROMATIC SULFONAMIDES, AROMATIC SULFIMIDES, ALIPHATIC SULFONAMIDES AND SULFONIC ACIDS, AND THE SECOND BEING PRESENT IN A CONCENTRATION OF FROM 0.0025 TO 0.075 GRAM PER LITER AND BEING CHOSEN FROM THE CLASS OF COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
103 words
AN AQUEOUS ACID NICKEL PLATING SOLUTION COMPRISING A SOURCE OF NICKEL IONS SELECTED FROM THE CLASS CONSISTING OF NICKEL SULFATE, NICKEL CHLORIDE AND MIXTURES THEREOF, SAID SOLUTION ALSO CONTAINING COOPERATING ADDITIVES FOR ENHANCING THE BRIGHTNESS OF NICKEL DEPOSITS PRODUCED THEREIN, ONE OF SAID ADDITIVES BEING PRESENT IN A CONCENTRATION OF FROM 0.05 TO 20 GRAMS PER LITER AND BEING CHOSEN FROM THE CLASS CONSISTING OF AROMATIC SULFONATES, AROMATIC SULFONAMIDES, AROMATIC SULFIMIDES, ALIPHATIC SULFONAMIDES AND SULFONIC ACIDS, AND THE SECOND BEING PRESENT IN A CONCENTRATION OF FROM 0.0025 TO 0.075 GRAM PER LITER AND BEING CHOSEN FROM THE CLASS OF COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |