US3778465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of hydroxy-fatty acid esters
Assignee: Henkel AG and Co KGaA
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Filing: 1971-04-27
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Granted: 1973-12-11
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Expires: 1991-04-27
Abstract
Abstract A PROCESS FOR THE PRODUCTION OF HYDROXY-FATTY ACID ESTERS COMPRISING HYDROGENTING EPOXIDIZED FATTY ACID ESTERS WITH HYDROGEN IN THE PRESENCE OF HEAVY METAL CATALYSTS OF THE 8TH GROUP OF THE PERIODIC TABLE AT TEMPERATURES BETWEEN 100*C. AND 250*C. AND A HYDROGEN PRESSURE OF AT LEAST 50 ATMOSPHERES AND RECOVERING SAID HYDROXY-FATTY ACID ESTERS.
Inventors
- 👤 J Barnstorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:25
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/12; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/42
Claims Analysis
Total Claims: 0
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |