Patent US2686191A successfully refreshed from Google Patents.
US2686191A
Expired / Lapsed
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Esters from sperm oil
Assignee: Henkel AG and Co KGaA
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Filing: 1952-01-30
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Granted: 1954-08-10
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Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Grunthal Erich
- 👤 Mannes Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:20
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/02; C11C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
METHOD FOR THE PRODUCTION OF FATTY ALCOHOL ESTERS OF UNSATURATED FATTY ACID FROM SPERM OIL HAVING AN ACID VALUE BELOW 5, WHICH COMPRISES HEATING SUCH OIL IN THE PRESENCE OF WATER AT A TEMPERATURE SUFFICIENT TO SPLIT THE GLYCERIDES IN SAID SPERM OIL AND INSUFFICIENT TO APPRECIABLY SPLIT NON-GLYCERIDE ESTERS IN SAID SPERM OIL, AND RECOVERING PRACTICALLY NEUTRAL FATTY ALCOHOL ESTERS OF UNSATURATED FATTY ACIDS FROM THE REACTION PRODUCT.
Claim 2
Dependent Claim
69 words
METHOD FOR THE PRODUCTION OF FATTY ALCOHOL ESTERS OF UNSATURATED FATTY ACID FROM SPERM OIL HAVING AN ACID VALUE BELOW 5, WHICH COMPRISES HEATING SUCH OIL IN THE PRESENCE OF WATER AT A TEMPERATURE SUFFICIENT TO SPLIT THE GLYCERIDES IN SAID SPERM OIL AND INSUFFICIENT TO APPRECIABLY SPLIT NON-GLYCERIDE ESTERS IN SAID SPERM OIL, AND RECOVERING PRACTICALLY NEUTRAL FATTY ALCOHOL ESTERS OF UNSATURATED FATTY ACIDS FROM THE REACTION PRODUCT.
References Cited (Backward Citations)
US2458170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |