US3067875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore beneficiation process
Assignee: International Minerals and Chemical Corp
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Filing: 1959-02-25
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Granted: 1962-12-11
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Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 Douglas H Fenske
- 👤 Joseph F Haseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/008; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PROCESS FOR PREPARING A REAGENT FOR USE IN A PROCESS FOR BENEFICIATING ORES WHICH COMPRISES ADMIXING (A) AND (B); (A) A TALL OIL MATERIAL SELECTED FORM THE GROUP CONSISTING OF TALL OIL, MIDDLE FRACTONS OF TALL OIL, HEAVY TALL OIL FRACTIONS AND MIXTURES THEREOF; (B) A TALL OIL FRACTION HAVING A FATTY ACID CONTENT OF AT LEAST 35% BY WEIGHT, HAVING A BOILING RANGE RELATIVELY LOWER THAN SAID TALL OIL MATERIAL (A), AND HAVING A WEIGHT RATIO OF ROSIN ACIDS TO FATTY ACIDS LESS THAN ABOUT 0.6; SAID (B) LOWER BOILING TALL OIL FRACTION BEING USED IN AN AMOUNT OF AT LEAST 5% BY WEIGHT OF THE RESULTING ADMIXTURE OF (A) AND (B) TO PRODUCE A RESULTING ADMIXTURE OF (A) AND (B) HAVING A FATTY ACID CONTENT OF AT LEAST 35% BY WEIGHT AND A WEIGHT RATIO OF ROSIN ACIDS TO FATTY ACIDS LESS THAN 1.1.
Claim 2
Dependent Claim
147 words
A PROCESS FOR PREPARING A REAGENT FOR USE IN A PROCESS FOR BENEFICIATING ORES WHICH COMPRISES ADMIXING (A) AND (B); (A) A TALL OIL MATERIAL SELECTED FORM THE GROUP CONSISTING OF TALL OIL, MIDDLE FRACTONS OF TALL OIL, HEAVY TALL OIL FRACTIONS AND MIXTURES THEREOF; (B) A TALL OIL FRACTION HAVING A FATTY ACID CONTENT OF AT LEAST 35% BY WEIGHT, HAVING A BOILING RANGE RELATIVELY LOWER THAN SAID TALL OIL MATERIAL (A), AND HAVING A WEIGHT RATIO OF ROSIN ACIDS TO FATTY ACIDS LESS THAN ABOUT 0.6; SAID (B) LOWER BOILING TALL OIL FRACTION BEING USED IN AN AMOUNT OF AT LEAST 5% BY WEIGHT OF THE RESULTING ADMIXTURE OF (A) AND (B) TO PRODUCE A RESULTING ADMIXTURE OF (A) AND (B) HAVING A FATTY ACID CONTENT OF AT LEAST 35% BY WEIGHT AND A WEIGHT RATIO OF ROSIN ACIDS TO FATTY ACIDS LESS THAN 1.1.
References Cited (Backward Citations)
US2826301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |