US2524010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of nickel
Assignee: Harshaw Chemical Co
•
Filing: 1946-07-12
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Granted: 1950-09-26
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Expires: 1966-07-12
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
- 👤 Paul W Moy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:24
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS OF PRODUCING BRIGHT DEPOSITS OF NICKEL COMPRISING ELECTROLYZING AN AQUEOUS, ACID SOLUTION OF A NICKEL ELECTROLYTE OF THE CLASS CONSISTING OF NICKEL SULFATE AND MIXTURES OF NICKEL SULFATE WITH NICKEL CHLORIDE, SUCH SOLUTION ALSO CONTAINING AN EFFECTIVE AMOUNT OF EACH OF TWO COOPERATING ADDITION AGENTS, ONE OF SUCH ADDITION AGENTS BEING ETHYLENE CYANOHYDRIN AND BEING MAINTAINED IN SAID SOLUTION IN CONCENTRATION FROM 0.1 TO 1.0 GM. PER LITER AND THE OTHER OF SUCH ADDITION AGENTS BEING BENZENE MONOSULFONIC ACID AND BEING MAINTAINED IN SAID SOLUTION IN CONCENTRATION FROM 0.2 TO 10 GM. PER LITER.
Claim 2
Dependent Claim
96 words
A PROCESS OF PRODUCING BRIGHT DEPOSITS OF NICKEL COMPRISING ELECTROLYZING AN AQUEOUS, ACID SOLUTION OF A NICKEL ELECTROLYTE OF THE CLASS CONSISTING OF NICKEL SULFATE AND MIXTURES OF NICKEL SULFATE WITH NICKEL CHLORIDE, SUCH SOLUTION ALSO CONTAINING AN EFFECTIVE AMOUNT OF EACH OF TWO COOPERATING ADDITION AGENTS, ONE OF SUCH ADDITION AGENTS BEING ETHYLENE CYANOHYDRIN AND BEING MAINTAINED IN SAID SOLUTION IN CONCENTRATION FROM 0.1 TO 1.0 GM. PER LITER AND THE OTHER OF SUCH ADDITION AGENTS BEING BENZENE MONOSULFONIC ACID AND BEING MAINTAINED IN SAID SOLUTION IN CONCENTRATION FROM 0.2 TO 10 GM. PER LITER.
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) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |