Patent US2511428A successfully refreshed from Google Patents.
US2511428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antioxidants
Assignee: Nopco Chemical Co
•
Filing: 1947-05-27
•
Granted: 1950-06-13
•
Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 Buxton Loran Oid
- 👤 Dryden Charles Early
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:38
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PROCESS FOR ENHANCING THE ANTIOXIDANT ACTIVITY OF A PHOSPHATIDE WHICH COMPRISES HEATING IN CONTACT WITH AMMONIA A MIXTURE OF A PHOSPHATIDE AND A VOLATILE ORGANIC SOLVENT IN WHICH THE PHOSPHATIDE IS AT LEAST PARTIALLY SOLUBLE, SAID SOLVENT HAVING A BOILING POINT OF AT LEAST ABOUT 40*C., THE HEATING BEING CARRIED OUT AT ABOUT THE REFLUX TEMPERATURE OF THE SOLVENT, AND THEREAFTER REMOVING FROM THE PHOSPHATIDE THE FREE AMMONIA ADMIXED THEREWITH, THE AMMONIA COMBINED WITH THE FATTY ACIDS IN THE PHOSPHATIDE, THE VOLATILE ORGANIC SOLVENT AND ANY WATER WHICH IS PRESENT IN THE MIXTURE, SAID REMOVAL OF THE AMMONIA, THE WATER AND THE SOLVENT BEING ACCOMPLISHED BY HEATING THE PHOSPHATIDE UNDER REDUCED PRESSURE UNTIL THE AMMONIUM SOAPS THEREIN ARE SPLIT INTO FREE AMMONIA AND FREE FATTY ACIDS AND THE AMMONIA IS REMOVED FROM THE PHOSPHATIDE LEAVING THE FREE FATTY ACIDS IN THE PHOSPHATIDE.
Claim 2
Dependent Claim
143 words
A PROCESS FOR ENHANCING THE ANTIOXIDANT ACTIVITY OF A PHOSPHATIDE WHICH COMPRISES HEATING IN CONTACT WITH AMMONIA A MIXTURE OF A PHOSPHATIDE AND A VOLATILE ORGANIC SOLVENT IN WHICH THE PHOSPHATIDE IS AT LEAST PARTIALLY SOLUBLE, SAID SOLVENT HAVING A BOILING POINT OF AT LEAST ABOUT 40*C., THE HEATING BEING CARRIED OUT AT ABOUT THE REFLUX TEMPERATURE OF THE SOLVENT, AND THEREAFTER REMOVING FROM THE PHOSPHATIDE THE FREE AMMONIA ADMIXED THEREWITH, THE AMMONIA COMBINED WITH THE FATTY ACIDS IN THE PHOSPHATIDE, THE VOLATILE ORGANIC SOLVENT AND ANY WATER WHICH IS PRESENT IN THE MIXTURE, SAID REMOVAL OF THE AMMONIA, THE WATER AND THE SOLVENT BEING ACCOMPLISHED BY HEATING THE PHOSPHATIDE UNDER REDUCED PRESSURE UNTIL THE AMMONIUM SOAPS THEREIN ARE SPLIT INTO FREE AMMONIA AND FREE FATTY ACIDS AND THE AMMONIA IS REMOVED FROM THE PHOSPHATIDE LEAVING THE FREE FATTY ACIDS IN THE PHOSPHATIDE.
References Cited (Backward Citations)
US2098254A
Cited
US2295179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |