Patent US3052699A successfully refreshed from Google Patents.
US3052699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of polyunsaturated fatty acids
Assignee: Individual
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Filing: 1960-08-31
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Granted: 1962-09-04
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Expires: 1980-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert E Beal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:04
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/02; C11C1/04; C11C1/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD COMPRISIING DEAERATING AN OIL SELECTED FROM THE GROUP CONSISTING OF SAFFLOWER OIL AND LINSEED OIL, RESPECTIVELY, HYDROLYZING THE DEAERATED OIL IN THE ABSENCE OF FREE OXYGEN TO FREE THE MIXED CONSTITUENT ACIDS, ISOLATING THE MIXED FATTY ACIDS, COMBINING ONE PART BY WEIGHT OF THE MIXED FREE ACIDS, PREHEATED TO 100*F., WITH AT LEAST ABOUT 10 PARTS BY WEIGHT OF SILILARLY PREHEATED FURFURAL CONTAINING ABOUT FROM 1 TO 3 PERCENT OF WATER, AND ABOUT 3 PARTS BY WEIGHT OF A PREHEATED MEMBER SELECTED FROM THE GROUP CONSISTING OF HEXANE AND ISO-OCTANE, FEEDING THE HEATED COMPONENT STREAMS TO A CENTRIFUGAL EXTRACTOR, EXTERNALLY COOLING THE SAID EXTRACTOR TO HOLD THE STREAMS ISSUING THEREFROM TO A TEMPERATURE OF ABOUT 100*F., AND RECOVERING SUBSTANTIALLY PURE LINOLEIC ACID AND SUBSTANTIALLY PURE LINOLENIC ACID, RESPECTIVELY.
Claim 2
Independent Claim
130 words
A METHOD COMPRISIING DEAERATING AN OIL SELECTED FROM THE GROUP CONSISTING OF SAFFLOWER OIL AND LINSEED OIL, RESPECTIVELY, HYDROLYZING THE DEAERATED OIL IN THE ABSENCE OF FREE OXYGEN TO FREE THE MIXED CONSTITUENT ACIDS, ISOLATING THE MIXED FATTY ACIDS, COMBINING ONE PART BY WEIGHT OF THE MIXED FREE ACIDS, PREHEATED TO 100*F., WITH AT LEAST ABOUT 10 PARTS BY WEIGHT OF SILILARLY PREHEATED FURFURAL CONTAINING ABOUT FROM 1 TO 3 PERCENT OF WATER, AND ABOUT 3 PARTS BY WEIGHT OF A PREHEATED MEMBER SELECTED FROM THE GROUP CONSISTING OF HEXANE AND ISO-OCTANE, FEEDING THE HEATED COMPONENT STREAMS TO A CENTRIFUGAL EXTRACTOR, EXTERNALLY COOLING THE SAID EXTRACTOR TO HOLD THE STREAMS ISSUING THEREFROM TO A TEMPERATURE OF ABOUT 100*F., AND RECOVERING SUBSTANTIALLY PURE LINOLEIC ACID AND SUBSTANTIALLY PURE LINOLENIC ACID, RESPECTIVELY.
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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |