US2932559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the continuous extraction of materials
Assignee: Acme Process Equipment Co
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Filing: 1957-11-22
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Granted: 1960-04-12
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Expires: 1977-11-22
Abstract
No abstract record available.
Inventors
- 👤 Placek Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:20
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/102; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0219; B01D2011/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE PROCESS OF SIMULTANEOUSLY EXTRACTING SEPARATELY SOLUBLE PRODUCTS FROM A DOWNWARDLY MOVING MASS OF SOLID MATERIAL WHICH COMPRISES INTRODUCING INTO AN INTERMEDIATE POINT IN THE MASS A STREAM OF TWO INTIMATELY MIXED MUTUALLY INSOLUBLE SOLVENTS OF DIFFERENT GRAVITY, WITHDRAWING THE MASS AT THE LOWER END OF ITS TRAVEL TOGETHER WITH THE SOLVENT OF HIGHER GRAVITY, REMOVING THE SOLVENT WITH ITS EXTRACTIVES FROM THE WITHDRAWN MASS, AND REMOVING THE SOLVENT OF LOWER GRAVITY WITH ITS EXTRACTIVES FROM THE UPPER END OF THE MOVING MASS.
Claim 2
Dependent Claim
83 words
THE PROCESS OF SIMULTANEOUSLY EXTRACTING SEPARATELY SOLUBLE PRODUCTS FROM A DOWNWARDLY MOVING MASS OF SOLID MATERIAL WHICH COMPRISES INTRODUCING INTO AN INTERMEDIATE POINT IN THE MASS A STREAM OF TWO INTIMATELY MIXED MUTUALLY INSOLUBLE SOLVENTS OF DIFFERENT GRAVITY, WITHDRAWING THE MASS AT THE LOWER END OF ITS TRAVEL TOGETHER WITH THE SOLVENT OF HIGHER GRAVITY, REMOVING THE SOLVENT WITH ITS EXTRACTIVES FROM THE WITHDRAWN MASS, AND REMOVING THE SOLVENT OF LOWER GRAVITY WITH ITS EXTRACTIVES FROM THE UPPER END OF THE MOVING MASS.
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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |