US3798246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing soybean phosphatides
Assignee: Ajinomoto Co Inc
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Filing: 1972-03-10
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Granted: 1974-03-19
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Expires: 1992-03-10
Abstract
Abstract CRUDE PHOSPHATIDES RECOVERED FROM SOYBEAN OIL IN A CONVENTIONAL MANNER ARE PURIFIED OF UNDERABLE COLOR AND ODOR BY CONTACTING A SOLUTION THEREOF IN N-HEXANE WITH ACTIVATED SILICA GEL FOR AT LEAST 20 MINUTES, SEPARATING THE SILICA GEL FROM THE SOLUTION, AND EVAPORATING THE SOLVENT. THE PURIFIED MATERIAL HAS A LIGHTER COLOR, MORE PLEASING ODOR AND FLAVOR, AND REDUCED ACID AND PEROXIDE VALUES. THE SILICA GEL MAY BE RETURNED TO THE PROCESS AFTER WASHING IN LOWER ALKANOLS.
Inventors
- 👤 H Shimazaki
- 👤 N Mitsuura
- 👤 S Tsukamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:42
CPC Classifications
A; A23; A23J; A23J7/00; A61; A61K; A61K47/00; A61K47/06; A61K47/24; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/30; A61K8/55; A61K8/553; A61Q; A61Q19/00
Claims Analysis
Total Claims: 0
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |