US3153055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating tocopherols and sterols from deodorizer sludge and the like
Assignee: Eastman Kodak Co
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Filing: 1962-03-20
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Granted: 1964-10-13
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Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Brown Winton
- 👤 Frank E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:39
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/58; C07D311/70; C07D311/72; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A PROCESS FOR SEPARATING TOCOPHEROLS AND STEROLS FROM A MIXTURE CONSISTING ESSENTIALLY OF TOCOPHEROLS, STEROLS, STEROL ESTERS, TRIGLYCERIDES AND LOWER MONOHYDRIC ALCOHOL ESTERS OF HIGHER FATTY ACIDS, WHICH COMPRISES: EFFECTING FRACTIONAL, LIQUID-LIQUID EXTRACTION OF SAID MIXTURE WITH A POLAR LIQUID SOLVENT AND A NONPOLAR LIQUID SOLVENT, THE VOLUMETRIC RATIO OF THE POLAR LIQUID SOVLENT TO THE NONPOLAR LIQUID SOLVENT BEING SELECTED TO RESULT IN MORE OF THE TOCOPHEROLS AND STEROLS INTHE MIXTURE BEING DISSOLVED BY THE POLAR LIQUID SOVLENT THAN BY THE NONPOLAR LIQUID SOVLENT, WHEREBY THERE IS OBTAINED A POLAR LIQUID SOLUTION RICH IN TOCOPHEROLS AND STEROLS BUT POOR IN LOWER MONOHYDRIC ALCOHOL ESTERS, STEROL ESTERS AND TRIGLYCERIDES, AND A NONPOLAR LIQUID SOLUTION THAT IS IMMISCIBLE WITH SAID POLAR LIQUID SOLUTION AN D POOR IN TOCOPHEROLS AND STEROLS BUT RICH IN STEROL ESTERS TRIGLYCERIDES AND LOWER MONOHYDRIC ALCOHOL ESTERS OF HIGHER FATTY ACIDS.
Claim 2
Dependent Claim
144 words
A PROCESS FOR SEPARATING TOCOPHEROLS AND STEROLS FROM A MIXTURE CONSISTING ESSENTIALLY OF TOCOPHEROLS, STEROLS, STEROL ESTERS, TRIGLYCERIDES AND LOWER MONOHYDRIC ALCOHOL ESTERS OF HIGHER FATTY ACIDS, WHICH COMPRISES: EFFECTING FRACTIONAL, LIQUID-LIQUID EXTRACTION OF SAID MIXTURE WITH A POLAR LIQUID SOLVENT AND A NONPOLAR LIQUID SOLVENT, THE VOLUMETRIC RATIO OF THE POLAR LIQUID SOVLENT TO THE NONPOLAR LIQUID SOLVENT BEING SELECTED TO RESULT IN MORE OF THE TOCOPHEROLS AND STEROLS INTHE MIXTURE BEING DISSOLVED BY THE POLAR LIQUID SOVLENT THAN BY THE NONPOLAR LIQUID SOVLENT, WHEREBY THERE IS OBTAINED A POLAR LIQUID SOLUTION RICH IN TOCOPHEROLS AND STEROLS BUT POOR IN LOWER MONOHYDRIC ALCOHOL ESTERS, STEROL ESTERS AND TRIGLYCERIDES, AND A NONPOLAR LIQUID SOLUTION THAT IS IMMISCIBLE WITH SAID POLAR LIQUID SOLUTION AN D POOR IN TOCOPHEROLS AND STEROLS BUT RICH IN STEROL ESTERS TRIGLYCERIDES AND LOWER MONOHYDRIC ALCOHOL ESTERS OF HIGHER FATTY ACIDS.
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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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |