Patent US2838369A successfully refreshed from Google Patents.
US2838369A
Expired / Lapsed
US
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Process for the concentration of ores containing gold and uranium
Assignee: Individual
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Filing: 1949-01-26
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Granted: 1958-06-10
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Expires: 1969-01-26
Abstract
No abstract record available.
Inventors
- 👤 Antoine M Gaudin
- 👤 Dasher John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:49
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D1/008; B03D2201/00; B03D2201/02; B03D2201/04; B03D2203/00; B03D2203/02; B03D2203/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS OF JOINTLY CONCENTRATING THE GOLD AND URANIUM VALUES FROM A LOW GRADE GOLD AND URANIUM BEARING ORE WHICH CONTAINS LARGE AMOUNTS OF QUARTZ GANGUE AND ALSO SOME FOLIATED SILICATE MINERALS, PYRITE AND CARBONACEOUS MATERIAL WHICH COMPRISES SUBJECTING THE ORE TO A FROTH FLOTATION PROCESS AT A PH BETWEEN 5 AND 8 EMPLOYING A FATTY ACID COLLECTOR, A SUPPLEMENTARY XANTHATE COLLECTOR AND A FROTHING AGENT.
Claim 2
Dependent Claim
66 words
A PROCESS OF JOINTLY CONCENTRATING THE GOLD AND URANIUM VALUES FROM A LOW GRADE GOLD AND URANIUM BEARING ORE WHICH CONTAINS LARGE AMOUNTS OF QUARTZ GANGUE AND ALSO SOME FOLIATED SILICATE MINERALS, PYRITE AND CARBONACEOUS MATERIAL WHICH COMPRISES SUBJECTING THE ORE TO A FROTH FLOTATION PROCESS AT A PH BETWEEN 5 AND 8 EMPLOYING A FATTY ACID COLLECTOR, A SUPPLEMENTARY XANTHATE COLLECTOR AND A FROTHING AGENT.
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |