US2789993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the extraction of isanic acid from vegetable oils
Assignee: UCB SA
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Filing: 1954-12-13
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Granted: 1957-04-23
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Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Vries Edward De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/18; C07C51/00; C07C51/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A PROCESS FOR THE EXTRACTION OF SIANIC ACID CONTAINED IN BOLEKO OIL COMPRISING THE STEPS OF DISSOLVING BOLEKO OIL IN ISOPROPYL ALCOHOL CONTAINING 0.1% OF WATER, THE CONCENTRATION OF OIL BEING OF 100 GRAMS FOR 600 MILLILITERS OF ISOPROPYL ALCOHOL, CAUSING CAUSTIC POTASH TO ACT UPON THE SOLUTION, 24 GRAMS OF CAUSTIC POTASH TITRATING 85% OF KOH BEING USED FOR 100 GRAMS OF BOLEKO OIL, THE REACTION BEING PERFORMED WITH RAPID AGITATION AND THE MIXTURE BEING COOLED TO BELOW 0*C., SEPARATING THE ALKALINE SOAPS AND EXTRACTING THE ISANIC ACID FROM THE LATTER.
References Cited (Backward Citations)
US1862037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |