US2506473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metod of obtaining fatty alcohols from their esters
Assignee: Richards Chemical Works
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Filing: 1948-06-10
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Granted: 1950-05-02
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Expires: 1968-06-10
Abstract
No abstract record available.
Inventors
- 👤 Steinberger Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/09; C07C29/095; C07C29/74; C07C29/76; C07C29/80; C07C29/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF RECOVERING HIGH BOILING FATTY ALCOHOLS CONTAINING 8 TO 20 CARBON ATOMS OR MORE FROM THEIR ESTERS WHICH COMPRISES SAPONIFYING SUCH ESTERS WITH AN ALKALINE AGENT IN THE PRESENCE OF WATER-MISCIBLE SOLVENT WHICH IS A SOLVENT FOR THE FATTY ALCOHOLS AND SOAP FORMED BY THE SAPONIFICATION AND WHICH HAS A BOILING POINT WITHIN THE RANGE FROM ABOUT 200 TO ABOUT 350*C., AND THEN DISTILLING THE MIXTURE TO OBTAIN A CODISTILLATE CONTAINING SUCH SOLVENT AND THE FATTY ALCOHOLS.
Claim 2
Independent Claim
79 words
THE METHOD OF RECOVERING HIGH BOILING FATTY ALCOHOLS CONTAINING 8 TO 20 CARBON ATOMS OR MORE FROM THEIR ESTERS WHICH COMPRISES SAPONIFYING SUCH ESTERS WITH AN ALKALINE AGENT IN THE PRESENCE OF WATER-MISCIBLE SOLVENT WHICH IS A SOLVENT FOR THE FATTY ALCOHOLS AND SOAP FORMED BY THE SAPONIFICATION AND WHICH HAS A BOILING POINT WITHIN THE RANGE FROM ABOUT 200 TO ABOUT 350*C., AND THEN DISTILLING THE MIXTURE TO OBTAIN A CODISTILLATE CONTAINING SUCH SOLVENT AND THE FATTY ALCOHOLS.
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) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |