US2680754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent extraction of oils, fats, and waxes from particles of solid matter
Assignee: Tiger Oats & Nat Milling Compa
•
Filing: 1950-10-03
•
Granted: 1954-06-08
•
Expires: 1970-10-03
Abstract
No abstract record available.
Inventors
- 👤 Stapelberg James Joh Llewenald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:30
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR THE SOLVENT EXTRACTION OF ONE OF THE GROUP CONSISTING OF OIL, FAT AND WAX FROM PARTICLES OF SOLID MATTER OF BIOLOGICAL ORIGIN, CHARACTERIZED IN THAT THE SOLVENT TO SOLUTE RATIO BY VOLUME, EXCLUDING FROM SUCH RATIO THAT SOLVENT WHICH IS RETAINED BY THE PARTICLES OF SOLID MATTER UPON SEPARATION OF MISCELLA THEREFROM, IS MAINTAINED SUFFICIENTLY LOW AS NOT TO BE IN EXCESS OF APPROXIMATELY 1.5 TO 1 TO PRODUCE A MISCELLA OF AT LEAST APPROXIMATELY 40 PER CENT SOLUTE CONTENT BY VOLUME.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE SOLVENT EXTRACTION OF ONE OF THE GROUP CONSISTING OF OIL, FAT AND WAX FROM PARTICLES OF SOLID MATTER OF BIOLOGICAL ORIGIN, CHARACTERIZED IN THAT THE SOLVENT TO SOLUTE RATIO BY VOLUME, EXCLUDING FROM SUCH RATIO THAT SOLVENT WHICH IS RETAINED BY THE PARTICLES OF SOLID MATTER UPON SEPARATION OF MISCELLA THEREFROM, IS MAINTAINED SUFFICIENTLY LOW AS NOT TO BE IN EXCESS OF APPROXIMATELY 1.5 TO 1 TO PRODUCE A MISCELLA OF AT LEAST APPROXIMATELY 40 PER CENT SOLUTE CONTENT BY VOLUME.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |