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Patent US2494726A successfully refreshed from Google Patents.
US2494726A
Expired / Lapsed
US
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Process for treating lipoidal material
Assignee: Armour and Co
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Filing: 1941-09-05
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Granted: 1950-01-17
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Expires: 1961-09-05
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sifferd
- 👤 Jules D Porsche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:50
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
THE PROCESS OF SEPARATING A GLYCOLIPID FROM A COMPOSITION CONTAINING IT IN MIXTURE WITH A STEROL WHICH COMPRISES SUBJECTING SAID COMPOSITION TO CONTACT WITH ETHYLENE DICHLORIDE IN THE PRESENCE OF MOISTURE, AND SEPARATING AN AQUESOUS PHASE CONTAINING SAID GLYCOLIPID FROM AN ETHYLENE DICHLORIDE PHASE CONTAINING SAID STEROL.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |