Patent US185500A successfully refreshed from Google Patents.
Patent US3780076A successfully refreshed from Google Patents.
US3780076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil treatment process
Assignee: Hunt Wesson Foods Inc
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Filing: 1971-02-18
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Granted: 1973-12-18
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Expires: 1991-02-18
Abstract
Abstract A CONTINUOUS METHOD OF TREATING REFINED UNBLEACHED SOYBEAN OIL TO PRODUCE A STABLE FRYING OIL. THE METHOD COMPRISES, IN THE FOLLOWING SEQUENCE, PREHEATING THE OIL, DEGASSING THE OIL, HEATING THE OIL TO A HIGHER TEMPERATURE, ADDING A COPPER CHROMITE CATALYST TO THE OIL, HEATING THE OIL TO THE CARALYTIC REACTION TEMPERATURE AND CONTACTING IT WITH CARBON DIOXIDE, DEGASSING AND COOLING THE OIL, FILTERING THE OIL, AND BLEACHING AND DEODORIZING THE OIL.
Inventors
- 👤 B Papahronis
- 👤 W Gibble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:15
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/001
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |