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US3129166A
Expired / Lapsed
US
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Ore beneficiation process and agent
Assignee: International Minerals and Chemical Corp
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Filing: 1961-06-30
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Granted: 1964-04-14
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Marvin B Gillis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:29
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/025; B03D2203/04; B03D2203/06; Y; Y10; Y10S; Y10S209/00; Y10S209/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN AN-ORE CONCENTRATION PROCESS FOR SEPARATING ACIDIC ORE MATERIALS FROM OTHER ORE CONSTITUENTS, THE STEP WHICH COMPRISES CARRYING OUT THE CONCENTRATION OPERATION IN THE PRESENCE OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF 1 A MIXTURE OF REAGENTS CONTAINING FROM ABOUT 0.25 TO ABOUT 3 WEIGHT PROPORTIONS OF (A) A CONVENTIONAL AMINE FLOTATION REAGENT PER WEIGHT PROPORTION OF (B) THE REAGENT PRODUCED BY REACTING ABOUT 1 MOLE OF A POLYALKYLENE POLYAMINE HAVING THE FORMULA
Claim 2
Dependent Claim
75 words
IN AN-ORE CONCENTRATION PROCESS FOR SEPARATING ACIDIC ORE MATERIALS FROM OTHER ORE CONSTITUENTS, THE STEP WHICH COMPRISES CARRYING OUT THE CONCENTRATION OPERATION IN THE PRESENCE OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF 1 A MIXTURE OF REAGENTS CONTAINING FROM ABOUT 0.25 TO ABOUT 3 WEIGHT PROPORTIONS OF (A) A CONVENTIONAL AMINE FLOTATION REAGENT PER WEIGHT PROPORTION OF (B) THE REAGENT PRODUCED BY REACTING ABOUT 1 MOLE OF A POLYALKYLENE POLYAMINE HAVING THE FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |