US2544725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of refining glyceride oils
Assignee: Lever Brothers Co
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Filing: 1947-05-19
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Granted: 1951-03-13
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Expires: 1967-05-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Rider
- 👤 Solomon D Gershon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS OF REFINING A GLYCERIDE OIL CONTAINING DISSOLVED UNDESIRABLE IMPURITIES, WHICH COMPRISES ADDING TO SAID OIL AN AMOUNT IN THE RANGE OF 0.5 TO 10% OF AN OIL SOLUBLE PARTIAL HIGHER FATTY ACID ESTER OF A POLYHYDROXY ALIPHATIC COMPOUND CONTAINING AT LEAST ONE FREE HYDROXYL GROUP, THEN MIXING WATER THEREWITH, AND THEN SEPARATING THE AQUEOUS PHASE FROM THE REFINED OIL PHASE, SAID AQUEOUS PHASE FROM THE REFINED SIRABLE IMPURITIES REMOVED FROM THE OIL, AND SAID REFINED OIL PHASE CONTAINING SAID ESTER.
Claim 2
Dependent Claim
82 words
A PROCESS OF REFINING A GLYCERIDE OIL CONTAINING DISSOLVED UNDESIRABLE IMPURITIES, WHICH COMPRISES ADDING TO SAID OIL AN AMOUNT IN THE RANGE OF 0.5 TO 10% OF AN OIL SOLUBLE PARTIAL HIGHER FATTY ACID ESTER OF A POLYHYDROXY ALIPHATIC COMPOUND CONTAINING AT LEAST ONE FREE HYDROXYL GROUP, THEN MIXING WATER THEREWITH, AND THEN SEPARATING THE AQUEOUS PHASE FROM THE REFINED OIL PHASE, SAID AQUEOUS PHASE FROM THE REFINED SIRABLE IMPURITIES REMOVED FROM THE OIL, AND SAID REFINED OIL PHASE CONTAINING SAID ESTER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |