US3058824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of lateritic cobalt-nickel ores
Assignee: Huntington Alloys Corp
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Filing: 1960-06-27
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Granted: 1962-10-16
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Illis Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:59
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0407; C22B23/0415; C22B23/043
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
A PROCESS FOR THE TREATMENT OF A COBALT- AND NICKELCONTAINING LATERITIC ORE OF THE IRON OXIDE TYPE WITH AN IRON CONTENT OF BETWEEN ABOUT 25% AND ABOUT 55% AND A MAGNESIA CONTENT OF LESS THAN ABOUT 10% FOR THE SELECTIVE REMOVAL OF COBALT CONTAINED THEREIN WHICH COMPRISES COMMINUTING SAID IRON OXIDE TYPE ORE, PREPARING A WATER SLURRY OF SAID COMMINUTED IRON OXIDE TYPE ORE, MAINTAINING SAID SLURRRY AT BEWTEEN ABOUT 70*F. AND ABOUT 200*F., ADDING AT LEAST ONE SULFUR COMPOUND FROM THE GROUP CONSISTING OF SULFUR DIOXIDE GAS AND SULFUROUS ACID AT SUBSTANTIALLY ATMOSPHERIC PRESSURE AT A RATE OF BETWEEN ABOUT
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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |