Patent US2711956A successfully refreshed from Google Patents.
US2711956A
Expired / Lapsed
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Method of precipitating cobalt carbonate from cobalt-nickel salt solutions
Assignee: Chemical Construction Corp
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Filing: 1952-09-23
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Granted: 1955-06-28
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Expires: 1972-09-23
Abstract
No abstract record available.
Inventors
- 👤 Felix A Schaufelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:16
CPC Classifications
C; C01; C01G; C01G51/00; C01G51/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN THE SEPARATION OF NICKEL FROM AQUEOUS SOLUTIONS CONTAINNG DISSOLVED NICKEL AND COBALT SALTS SELECTED FROM THE GROUP CONSISTING OF SULFATE AND CARBONATE, THE STEPS WHICH INCLUDE: ADJUSTING THE SOLUTES CONTENT OF THE SOLUTION TO CONTAIN UP TO ABOUT 100 GRAMS/LITER OF COMBINED DISSOLVED COBALT PLUS NICKEL IN CARBONATE LIQUORS AND UP TO ABOUT 135 GRAMS/LITER FOR SULFATE LIQUORS, ABOUT ONE TO ABOUT FOUR MOLS OF AMMONIUM CARBONATE/MOL OFO DISSOLVED COBALT PLUS NICKEL AND SUFFICIENT AVAILABLE AM-
Claim 2
Dependent Claim
77 words
IN THE SEPARATION OF NICKEL FROM AQUEOUS SOLUTIONS CONTAINNG DISSOLVED NICKEL AND COBALT SALTS SELECTED FROM THE GROUP CONSISTING OF SULFATE AND CARBONATE, THE STEPS WHICH INCLUDE: ADJUSTING THE SOLUTES CONTENT OF THE SOLUTION TO CONTAIN UP TO ABOUT 100 GRAMS/LITER OF COMBINED DISSOLVED COBALT PLUS NICKEL IN CARBONATE LIQUORS AND UP TO ABOUT 135 GRAMS/LITER FOR SULFATE LIQUORS, ABOUT ONE TO ABOUT FOUR MOLS OF AMMONIUM CARBONATE/MOL OFO DISSOLVED COBALT PLUS NICKEL AND SUFFICIENT AVAILABLE AM-
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) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |