US2866797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved process of isolating sterols
Assignee: General Mills Inc
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Filing: 1954-11-01
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Granted: 1958-12-30
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Berry Charles Manly
- 👤 Robert W H Chang
- 👤 Bard Ned M Le
- 👤 Sidney E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:33
CPC Classifications
C; C07; C07J; C07J9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
PROCESS FOR THE RECOVERY OF STEROLS FROM A SOLUTION THEREOF IN ETHYLENE DICHLORIDE WHICH COMPRISES ADDING THERETO FROM 0.2 TO 2% OF WATER AND FROM 2 TO 5% OF METHANOL, TO PRECIPITATE STEROLS AND RECOVERING THE STEROLS.
Claim 2
Dependent Claim
37 words
PROCESS FOR THE RECOVERY OF STEROLS FROM A SOLUTION THEREOF IN ETHYLENE DICHLORIDE WHICH COMPRISES ADDING THERETO FROM 0.2 TO 2% OF WATER AND FROM 2 TO 5% OF METHANOL, TO PRECIPITATE STEROLS AND RECOVERING THE STEROLS.
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |