US2759956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rice wax extraction
Assignee: Individual
•
Filing: 1953-11-03
•
Granted: 1956-08-21
•
Expires: 1973-11-03
Abstract
No abstract record available.
Inventors
- 👤 Pominski Joseph
- 👤 Henry L E Vix
- 👤 Paul H Eaves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:15
CPC Classifications
C; C11; C11B; C11B11/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
150 words
A PROCESS FOR EXTRACTING RICE BRAN WAX WHICH COMPRISES: HEATING RICE BRAN IN CONTACT WITH ABOUT FROM 4 TO 35% OF ITS WEIGHT OF WATER FOR ABOUT FROM 15 TO 70 MINUTES AT A TEMPERATURE OF ABOUT FROM 170 TO 235* F.; ADJUSTING THE MOISTURE CONTENT OF THE RICE BRAN BEING HEATED TO A FINAL MOISTURE CONTENT OF ABOUT FROM 8 TO 30%; CONTACTING THE SO-HEATED RICE BRAN WITH HEXANE AT A TEMPERATURE OF ABOUT FROM 145 TO 150* F. UNTIL WAX DISSOLVES; COOLING THE HOT WAX CONTAINING MISCELLA SO FORMED, AT A RATE OF ABOUT FROM 2 TO 4 DEGREES PER MINUTE, UNTL AN IMMISCIBLE WAX-RICH PHASE IS FORMED; CENTRIFUGAL LY SEPARATING THE WAX-RICH PHASE FROM THE PHASE CONSISTING ESSENTIALLY OF HEXANE; AND MIXING THE WAX-RICH PHASE WITH AND CENTRIFUGALLY SEPARATING TRACES OF HEXANE A PLURALITY OF TIMES, TO REMOVE TRACES OF HEXANE SOLUBLE COMPONENTS FROM THE WAX-RICH PHASE.
References Cited (Backward Citations)
US2381420A
Cited
US2428813A
Cited
US2448729A
Cited
US2452093A
Cited
US2456655A
Cited
US2577587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |