Patent US3032197A successfully refreshed from Google Patents.
US3032197A
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Phosphate ore beneficiation process entailing reagent recovery
Assignee: International Minerals and Chemical Corp
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Filing: 1959-10-06
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Granted: 1962-05-01
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Expires: 1979-10-06
Abstract
No abstract record available.
Inventors
- 👤 Northcott Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:42
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/016; B03D1/008; B03D2201/00; B03D2201/002; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04; B03D2203/06; Y; Y10; Y10S; Y10S209/00; Y10S209/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS WHICH COMPRISES CONDITIONING A LIBERATED PHOSPHATE ORE WITH AN ANIONIC REAGENT EFFECTIVE TO COAT THE PHOSPHATE MINERAL PARTICLES PRESENT, SUBJECTING AN AQUEOUS PULP OF CONDITIONED ORE TO A CONCENTRATION OPERATION TO PRODUCE A CONCENTRATE CONTAINING PHOSPHATE
Claim 2
Dependent Claim
38 words
THE PROCESS WHICH COMPRISES CONDITIONING A LIBERATED PHOSPHATE ORE WITH AN ANIONIC REAGENT EFFECTIVE TO COAT THE PHOSPHATE MINERAL PARTICLES PRESENT, SUBJECTING AN AQUEOUS PULP OF CONDITIONED ORE TO A CONCENTRATION OPERATION TO PRODUCE A CONCENTRATE CONTAINING PHOSPHATE
References Cited (Backward Citations)
US2293640A
Cited
US2389727A
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US2682337A
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US2783886A
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US2936887A
Cited
US2953569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |