US2662853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of nickel
Assignee: Harshaw Chemical Co
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Filing: 1950-11-07
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Granted: 1953-12-15
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Expires: 1970-11-07
Abstract
No abstract record available.
Inventors
- 👤 David G Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:02
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A METHOD FOR ELECTRODEPOSITING NICKEL IN THE FORM OF A DEPOSIT WHICH IS BRIGHT AS TAKEN FROM THE PLATING SOLUTION WITHOUT FURTHER TREATMENT AND WHICH COMPRISES ELECTROLYZING AN AQUEOUS ACID SOLUTION OF A NICKEL ELECTROLYTE OF THE CLASS CONSISTING OF NICKEL SULFATE, NICKEL CHLORIDE, AND MIXTURES OF NICKEL SULFATE WITH NICKEL CHLORIDE, SAID SOLUTION ALSO CONTAINING COOPERATING ADDITION AGENTS CAPABLE OF IMPARTING BRIGHTNESS TO THE DEPOSIT, ONE OF SAID ADDITION AGENTS BEING A POLYALKYLENE AMINE OF THE CLASS CONSISTING OF UNSUBSTITUTED AMINES OF THE GENERAL FORM
Claim 2
Independent Claim
86 words
A METHOD FOR ELECTRODEPOSITING NICKEL IN THE FORM OF A DEPOSIT WHICH IS BRIGHT AS TAKEN FROM THE PLATING SOLUTION WITHOUT FURTHER TREATMENT AND WHICH COMPRISES ELECTROLYZING AN AQUEOUS ACID SOLUTION OF A NICKEL ELECTROLYTE OF THE CLASS CONSISTING OF NICKEL SULFATE, NICKEL CHLORIDE, AND MIXTURES OF NICKEL SULFATE WITH NICKEL CHLORIDE, SAID SOLUTION ALSO CONTAINING COOPERATING ADDITION AGENTS CAPABLE OF IMPARTING BRIGHTNESS TO THE DEPOSIT, ONE OF SAID ADDITION AGENTS BEING A POLYALKYLENE AMINE OF THE CLASS CONSISTING OF UNSUBSTITUTED AMINES OF THE GENERAL FORM
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |