US2881195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining vegetable oils
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1955-04-15
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Granted: 1959-04-07
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Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 Lester P Hayes
- 👤 Wolff Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:00
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE PROCESSING OF VEGETABLE OILS WHEREIN A VEGETABLE OIL IS DEGUMMED AND THE DEGUMMED OIL IS WASHED, THE IMPROVEMENT WHICH COMPRISES WASHING THE DEGUMMED VEGETABLE OIL WITH FROM 3 TO 20% BASED ON THE WEIGHT OF THE OIL OF AN AQUEOUS SOLUTION CONTAINING FROM 0.25 TO 5% BASED ON THE WEIGHT OF THE WATER OF AT LEAST ONE WATER-SOLUBLE PHOSPHATIC COMPOUND EACH CATION OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF THE HYDROGEN, SODIUM, POTASSIUM AND AMMONIUM IONS AND WHICH HAS A NEGATIVE RADICAL SELECTED FROM THE GROUP CONSISTING OF HEXAMETAPHOSPHATE, PYROPHOSPHATE, TETRAPHOSPHATE AND METAPHOSPHATE.
Claim 2
Dependent Claim
97 words
IN THE PROCESSING OF VEGETABLE OILS WHEREIN A VEGETABLE OIL IS DEGUMMED AND THE DEGUMMED OIL IS WASHED, THE IMPROVEMENT WHICH COMPRISES WASHING THE DEGUMMED VEGETABLE OIL WITH FROM 3 TO 20% BASED ON THE WEIGHT OF THE OIL OF AN AQUEOUS SOLUTION CONTAINING FROM 0.25 TO 5% BASED ON THE WEIGHT OF THE WATER OF AT LEAST ONE WATER-SOLUBLE PHOSPHATIC COMPOUND EACH CATION OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF THE HYDROGEN, SODIUM, POTASSIUM AND AMMONIUM IONS AND WHICH HAS A NEGATIVE RADICAL SELECTED FROM THE GROUP CONSISTING OF HEXAMETAPHOSPHATE, PYROPHOSPHATE, TETRAPHOSPHATE AND METAPHOSPHATE.
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |