Patent US3342876A successfully refreshed from Google Patents.
US3342876A
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Process for the isolation of alphaglyceryl ethers from marine oils
Assignee: Eversharp Inc
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Filing: 1964-08-31
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Granted: 1967-09-19
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Chalmers William
- 👤 Alexander J Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:54
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C11; C11B; C11B7/00; C11B7/0008; C11B7/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS FOR EXTRACTING ALPHA GLYCERYL ETHERS FROM A MARINE OIL SOURCE WHICH COMPRISES ALCOHOLYSING A MARINE OIL LOW IN FREE FATTY ACIDS WITH A LOWER ALKANOL CONTAINING FROM 1 TO 3 CARBON ATOMS, IN THE PRESENCE OF AN ALKALINE CATALYST, UNTIL THE ALCOHOLYSIS IS SUBSTANTIALLY COMPLETE, DISSOLVING THE ALCOHOLYSIS PRODUCT IN A POLAR SOLVENT SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL AND AQUEOUS SOLUTIONS THEREOF CONTAINING UP TO 10% WATER BY VOLUME, CONTACTING THE RESULTING SOLUTION WITH AN IMMISICIBLE SOLVENT SELECTED FROM THE GROUP CONSISTING OF HERRING OIL, DOGFISH LIVER OIL AND HEXANE SEPARATING THE RESULTING PHASES AND RECOVERING AN ENRICHED EXTRACT CONTAINING MIXED ALPHA GLYCERYL ETHERS FROM THE POLAR SOLVENT PHASE.
Claim 2
Dependent Claim
114 words
A PROCESS FOR EXTRACTING ALPHA GLYCERYL ETHERS FROM A MARINE OIL SOURCE WHICH COMPRISES ALCOHOLYSING A MARINE OIL LOW IN FREE FATTY ACIDS WITH A LOWER ALKANOL CONTAINING FROM 1 TO 3 CARBON ATOMS, IN THE PRESENCE OF AN ALKALINE CATALYST, UNTIL THE ALCOHOLYSIS IS SUBSTANTIALLY COMPLETE, DISSOLVING THE ALCOHOLYSIS PRODUCT IN A POLAR SOLVENT SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL AND AQUEOUS SOLUTIONS THEREOF CONTAINING UP TO 10% WATER BY VOLUME, CONTACTING THE RESULTING SOLUTION WITH AN IMMISICIBLE SOLVENT SELECTED FROM THE GROUP CONSISTING OF HERRING OIL, DOGFISH LIVER OIL AND HEXANE SEPARATING THE RESULTING PHASES AND RECOVERING AN ENRICHED EXTRACT CONTAINING MIXED ALPHA GLYCERYL ETHERS FROM THE POLAR SOLVENT PHASE.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |