US2686757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppression of honeycombing in cathode nickel
Assignee: Huntington Alloys Corp
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Filing: 1953-01-15
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Granted: 1954-08-17
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Expires: 1973-01-15
Abstract
No abstract record available.
Inventors
- 👤 Cook Wilfred James
- 👤 Barker Wilbur Vernon
- 👤 Tuck Joseph Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:30
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/06; C25C1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR THE ELECTROREFINING OF NICKEL FROM AN AQUEOUS NICKEL-CONTAINING SOLUTION WHICH COMPRISES ESTABLISHING A CATHOLYTE HAVING A PH BETWEEN ABOUT 3 AND ABOUT 5 COMPRISING BETWEEN ABOUT 40 TO ABOUT 70 G. P. L. OF NICKEL, ABOUT 12 TO ABOUT 30 G.P.L. OF SODIUM, ABOUT 18 TO ABOUT 55 G.P.L. OF CHLORIDE RADICAL ABOUT 65 TO ABOUT 115 G.P.L. OF SULFATE RADICAL, ABOUT 15 TO ABOUT 25 G.P.L. OF BORIC ACID AND ABOUT 0.0003 TO ABOUT 0.001 G.P.L. OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A COMPOUND HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
97 words
A PROCESS FOR THE ELECTROREFINING OF NICKEL FROM AN AQUEOUS NICKEL-CONTAINING SOLUTION WHICH COMPRISES ESTABLISHING A CATHOLYTE HAVING A PH BETWEEN ABOUT 3 AND ABOUT 5 COMPRISING BETWEEN ABOUT 40 TO ABOUT 70 G. P. L. OF NICKEL, ABOUT 12 TO ABOUT 30 G.P.L. OF SODIUM, ABOUT 18 TO ABOUT 55 G.P.L. OF CHLORIDE RADICAL ABOUT 65 TO ABOUT 115 G.P.L. OF SULFATE RADICAL, ABOUT 15 TO ABOUT 25 G.P.L. OF BORIC ACID AND ABOUT 0.0003 TO ABOUT 0.001 G.P.L. OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A COMPOUND HAVING THE STRUCTURAL FORMULA
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) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |