US3175916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing edible oils from tall oil fatty acids
Assignee: Maple Leaf Foods Inc
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Filing: 1961-12-11
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Granted: 1965-03-30
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Costigliola Biagio
- 👤 Barton F Teasdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:37
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/12; C; C11; C11C; C11C3/00; C11C3/02; F16L21/00; F16L21/02; F16L21/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR THE CONVERSION OF TALL OIL FATTY ACIDS INTO EDIBLE TRIGLYCERIDES COMPRSING ESTERIFYING TALL OIL FATTY ACIDS WITH GLYCEROL IN THE PRESENCE OF A CATALYTIC QUANTITY OF SNSO4 AT A TEMPERATURE IN THE RANGE OF ABOUT 200* TO 280*C. FOR A TIME OF ABOUT 2 1/2 TO 6 1/2 HOURS, THE MOLAR PROPORTION OF FATTY ACIDS AND GLYCEROL IN THE REACTION MIXTURE BEING APPROXIMATELY 3 TO 1.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE CONVERSION OF TALL OIL FATTY ACIDS INTO EDIBLE TRIGLYCERIDES COMPRSING ESTERIFYING TALL OIL FATTY ACIDS WITH GLYCEROL IN THE PRESENCE OF A CATALYTIC QUANTITY OF SNSO4 AT A TEMPERATURE IN THE RANGE OF ABOUT 200* TO 280*C. FOR A TIME OF ABOUT 2 1/2 TO 6 1/2 HOURS, THE MOLAR PROPORTION OF FATTY ACIDS AND GLYCEROL IN THE REACTION MIXTURE BEING APPROXIMATELY 3 TO 1.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |