US3212901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized tocopherol concentrates and process for preparing the same
Assignee: Eastman Kodak Co
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Filing: 1961-06-07
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Granted: 1965-10-19
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Charles D Robeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:14
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/335; A61K31/35; A61K31/352; A61K31/353; A61K31/355
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
A PROCESS FOR INCREASING THE STABILITY OF A DEODORIZER DISTILATE, HAVING A TOCOPHEROL CONTENT AND A FREE FATTY ACID CONTENT, WHICH COMPRIESE: ADMIXING WITH SAID DISTILLATE A STABILIZING QUANTITY OF POLYPHOSPHORIC ACID.
Claim 2
Dependent Claim
32 words
A PROCESS FOR INCREASING THE STABILITY OF A DEODORIZER DISTILATE, HAVING A TOCOPHEROL CONTENT AND A FREE FATTY ACID CONTENT, WHICH COMPRIESE: ADMIXING WITH SAID DISTILLATE A STABILIZING QUANTITY OF POLYPHOSPHORIC ACID.
Claim 3
Dependent Claim
119 words
A STABLE TOCOPHEROL CONCENTRATE USEFUL FOR ANIMAL FEEDS AND THE LIKE, WHICH COMPRISES: A STABILIZED DEODORIZER DISTILLATE PREPARED BY FORMING AN ADMIXTURE COMPRISING (1) A DEODORIZER DISTILLATE HAVING A TOCOPHEROL CONTENT AT A CONCENTRATION OF AT LEAST 2 WEIGHT PERCENT AND REPRESENTING AT LEAST ABOUT 1000 INTERNATIONAL UNITS OF VITAMIN E, AND A FREE FATTY ACID CONTENT AT A CONCENTRATION AT LEAST THE MOLECULAR EQUIVALENT OF SAID TOCOPHEROL CONTENT, AND (2) POLYPHOSPHORIC ACID IN A PARTS BY WEIGHT RATIO (POLYPHOSPHORIC ACID TO DISTILLATE) IN A RANGE FROM ABOUT 0.9:1 TO ABOUT 1.5:1 AND ESTABLISHING AND MAINTAINING FOR AT LEAST ABOUT A QUARATER OF AN HOUR THE TEMMPERATURE OF SAID ADMIXTURE IN A RANGE FROM ABOUT 50*C TO ABOUT 100*C.
Claim 4
Dependent Claim
119 words
A STABLE TOCOPHEROL CONCENTRATE USEFUL FOR ANIMAL FEEDS AND THE LIKE, WHICH COMPRISES: A STABILIZED DEODORIZER DISTILLATE PREPARED BY FORMING AN ADMIXTURE COMPRISING (1) A DEODORIZER DISTILLATE HAVING A TOCOPHEROL CONTENT AT A CONCENTRATION OF AT LEAST 2 WEIGHT PERCENT AND REPRESENTING AT LEAST ABOUT 1000 INTERNATIONAL UNITS OF VITAMIN E, AND A FREE FATTY ACID CONTENT AT A CONCENTRATION AT LEAST THE MOLECULAR EQUIVALENT OF SAID TOCOPHEROL CONTENT, AND (2) POLYPHOSPHORIC ACID IN A PARTS BY WEIGHT RATIO (POLYPHOSPHORIC ACID TO DISTILLATE) IN A RANGE FROM ABOUT 0.9:1 TO ABOUT 1.5:1 AND ESTABLISHING AND MAINTAINING FOR AT LEAST ABOUT A QUARATER OF AN HOUR THE TEMMPERATURE OF SAID ADMIXTURE IN A RANGE FROM ABOUT 50*C TO ABOUT 100*C.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |