US3069443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating soybean oil
Assignee: Central Soya Co Inc
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Filing: 1959-09-17
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Granted: 1962-12-18
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Norman H Witte
- 👤 Sipos Endre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:28
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/006; A; A23; A23K; A23K20/00; A23K20/10; A23K20/179; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE METHOD OF TREATING SOYBEAN OIL TO IMPROVE ITS QUALITY AND TO RECOVER A XANTHOPHYLL CONCENTRATE AS A BY-PRODUCT, COMPRISING EXTRACTING CRUDE DEGUMMED SOYBEAN OIL CONTAINING XANTHOPHYLL WITH METHANOL AT A TEMPERATURE ABOVE 40*F, UP TO ABOUT 140*F., THE EXTRACTION SYSTEM INCLUDING SAID METHANOL AND SAID SOYBEAN OIL CONTAINING LESS THAN 1 PERCENT WATER BY WEIGHT DURING SAID EXTRACTION, CONTINUING SAID EXTRACTION UNTIL AT LEAST A MAJOR PORTION OF THE XANTHOPHYLL HAS BEEN EXTRACTED INTO THE METHANOL PHASE WHILE SAID METHANOL PHASE CONTAINS LESS THAN 2% BY WEIGHT OF THE TRIGLYCERIDES OF SAID SOYBEAN OIL, SEPARATING THE XANTHOPHYLL-CONTAINING METHANOL PHASE FROM THE OIL PHASE, REMOVING THE METHANOL FROM THE EXTRACTED MATERIAL IN SAID METHANOL PHASE TO OBTAIN A XANTHOPHYLL CONCENTRATE, AND ALSO REMOVING THE METHANOL FROM THE OIL PHASE TO OBTAIN A SOYBEAN OIL PRODUCT OF IMPROVED QUANLITY.
Claim 2
Independent Claim
138 words
THE METHOD OF TREATING SOYBEAN OIL TO IMPROVE ITS QUALITY AND TO RECOVER A XANTHOPHYLL CONCENTRATE AS A BY-PRODUCT, COMPRISING EXTRACTING CRUDE DEGUMMED SOYBEAN OIL CONTAINING XANTHOPHYLL WITH METHANOL AT A TEMPERATURE ABOVE 40*F, UP TO ABOUT 140*F., THE EXTRACTION SYSTEM INCLUDING SAID METHANOL AND SAID SOYBEAN OIL CONTAINING LESS THAN 1 PERCENT WATER BY WEIGHT DURING SAID EXTRACTION, CONTINUING SAID EXTRACTION UNTIL AT LEAST A MAJOR PORTION OF THE XANTHOPHYLL HAS BEEN EXTRACTED INTO THE METHANOL PHASE WHILE SAID METHANOL PHASE CONTAINS LESS THAN 2% BY WEIGHT OF THE TRIGLYCERIDES OF SAID SOYBEAN OIL, SEPARATING THE XANTHOPHYLL-CONTAINING METHANOL PHASE FROM THE OIL PHASE, REMOVING THE METHANOL FROM THE EXTRACTED MATERIAL IN SAID METHANOL PHASE TO OBTAIN A XANTHOPHYLL CONCENTRATE, AND ALSO REMOVING THE METHANOL FROM THE OIL PHASE TO OBTAIN A SOYBEAN OIL PRODUCT OF IMPROVED QUANLITY.
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) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |