Patent US4552555A successfully refreshed from Google Patents.
US3207744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for countercurrent extraction of vegetable material by sequential contactingof the material with mutually-miscible high-aquosity and lowaquosity organic solvents
Assignee: Primary Products Ingredients Americas LLC
•
Filing: 1961-04-03
•
Granted: 1965-09-21
•
Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 James B O'hara
- 👤 Arthur E Schoepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:54
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
THE METHOD OF SOLVENT EXTRACTION OF DEFATTED VEGETABLE MATERIAL SUBJECT TO EXTRACTION OF SOLUBLE CONTENT THEREFROM BY A SOLVENT LIQUID COMPRISING A COMPATIBLE MIXTURE OF WATER AND VOLATILE, WATER-SOLUBLE ORGANIC SOLVENT CAPABLE OF DISSOLVING NON-PROTEIN COMPONENTS OF SAID DEFATTED VEGATABLE MATERIAL, WHICH COMPRISES CONTINOUSLY MOVING A STREAM OF SAID MATERIAL IN ONE DIRECTION THROUGH A LIQUID-CONFINING SPACE, INTRODUCING SAID MATERIAL IN THE VICINITY OF THE FIRST END OF SAID SPACE TO SAID SOLVENT MIXTURE MOVING COUNTERCURRENT TO SAID MATERIAL, REMOVING THE UNDISSOLVED RESIDUE OF SAID MATERIAL FROM THE VICINITY OF THE SECOND END OF SAID SPACE, FORMING SAID SOLVENT LIQUID WITHIN SAID SPACE IN THE VICINITY OF A REGION INTERMEDIATE TO SAID ENDS IN PART BY INTRODUCING INTO SAID SPACE IN THE VICINITY OF SAID SECOND END A LESS AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF SAID SOLVENT AND A MIXTURE OF WATER AND SAID ORGANIC SOLVENT AND MOVING SAID LESS AQUEOUS LIQUID TOWARD SAID INTERMEDIATE REGION, AND IN PART BY INTRODUCING INTO SAID REGION A MORE AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND A MIXTURE OF WATER AND SAID ORGANIC SOLVENT, WHEREBY EXTRACTION BY SAID
Claim 2
Independent Claim
190 words
THE METHOD OF SOLVENT EXTRACTION OF DEFATTED VEGETABLE MATERIAL SUBJECT TO EXTRACTION OF SOLUBLE CONTENT THEREFROM BY A SOLVENT LIQUID COMPRISING A COMPATIBLE MIXTURE OF WATER AND VOLATILE, WATER-SOLUBLE ORGANIC SOLVENT CAPABLE OF DISSOLVING NON-PROTEIN COMPONENTS OF SAID DEFATTED VEGATABLE MATERIAL, WHICH COMPRISES CONTINOUSLY MOVING A STREAM OF SAID MATERIAL IN ONE DIRECTION THROUGH A LIQUID-CONFINING SPACE, INTRODUCING SAID MATERIAL IN THE VICINITY OF THE FIRST END OF SAID SPACE TO SAID SOLVENT MIXTURE MOVING COUNTERCURRENT TO SAID MATERIAL, REMOVING THE UNDISSOLVED RESIDUE OF SAID MATERIAL FROM THE VICINITY OF THE SECOND END OF SAID SPACE, FORMING SAID SOLVENT LIQUID WITHIN SAID SPACE IN THE VICINITY OF A REGION INTERMEDIATE TO SAID ENDS IN PART BY INTRODUCING INTO SAID SPACE IN THE VICINITY OF SAID SECOND END A LESS AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF SAID SOLVENT AND A MIXTURE OF WATER AND SAID ORGANIC SOLVENT AND MOVING SAID LESS AQUEOUS LIQUID TOWARD SAID INTERMEDIATE REGION, AND IN PART BY INTRODUCING INTO SAID REGION A MORE AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND A MIXTURE OF WATER AND SAID ORGANIC SOLVENT, WHEREBY EXTRACTION BY SAID
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |