US2505012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of fatty acids
Assignee: Wilson and Co Inc
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Filing: 1947-07-02
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Granted: 1950-04-25
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Expires: 1967-07-02
Abstract
No abstract record available.
Inventors
- 👤 Hiram T Spannuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:40
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD OF SEPARATING A MIXTURE OF HIGHER FATTY ACIDS INTO FRACTIONS HAVING DIFFERENT MELTING POINTS COMPRISING RAPIDLY COOLING A LIQUID MIXTURE OF THE SAID HIGHER FATTY ACIDS TO A TEMPERATURE WHICH IS BELOW THE MELTING POINT OF THE SAID MIXTURE BUT IS ABOVE THE MELTING POINT OF A COMPONENT FRACTION OF THE SAID MIXTURE, CONTACTING THE COOLED MIXTURE WITH A SOLVENT THEREFOR, WHICH IS AT A TEMPERATURE SO LOW THAT A HIGHER MELTING FATTY ACID FRACTION IS INSOLUBLE THEREIN, AND SEPARATING THE UNDISSOLVED FATTY ACID FRACTION FROM THE DISSOLVED FATTY ACID FRACTION.
Claim 2
Independent Claim
93 words
A METHOD OF SEPARATING A MIXTURE OF HIGHER FATTY ACIDS INTO FRACTIONS HAVING DIFFERENT MELTING POINTS COMPRISING RAPIDLY COOLING A LIQUID MIXTURE OF THE SAID HIGHER FATTY ACIDS TO A TEMPERATURE WHICH IS BELOW THE MELTING POINT OF THE SAID MIXTURE BUT IS ABOVE THE MELTING POINT OF A COMPONENT FRACTION OF THE SAID MIXTURE, CONTACTING THE COOLED MIXTURE WITH A SOLVENT THEREFOR, WHICH IS AT A TEMPERATURE SO LOW THAT A HIGHER MELTING FATTY ACID FRACTION IS INSOLUBLE THEREIN, AND SEPARATING THE UNDISSOLVED FATTY ACID FRACTION FROM THE DISSOLVED FATTY ACID FRACTION.
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) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |