US2851396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-liquid extraction
Assignee: CF Braun and Co
•
Filing: 1954-09-16
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Granted: 1958-09-09
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Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry S Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08; B; B01; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043; B01D11/0442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A LIQUID-LIQUID EXTRACTOR THE COMBINATION COMPRISING A MIXING COMPARTMENT HAVING A PERFORATED BOTTOM AND IMPERFORATE SIDE WALLS, MEANS FOR INTRODUCING A FIRST LIQUID INTO THE MIXING COMPARTMENT, MEANS FOR INTRO DUCING A SECOND LIQUID INTO THE MIXING COMPARTMENT, THE SECOND LIQUID BEING SUBSTANTIALLY INSOLUBLE IN THE FIRST AND OF A DIFFERENT DENSITY, MEANS FOR FORCING GAS UP THROUGH THE PERFORATED BOTTOM TO PRODUCE AN INTIMATE MIXTURE OF THE TWO LIQUIDS, AN ANNULAR SETTLING COMPARTMENT DISPOSED AROUND THE MIXING COMPARTMENT AND HAVING AN IMPERFORATE INNER WALL SURFACE FORMING A BARRIER
Claim 2
Dependent Claim
90 words
IN A LIQUID-LIQUID EXTRACTOR THE COMBINATION COMPRISING A MIXING COMPARTMENT HAVING A PERFORATED BOTTOM AND IMPERFORATE SIDE WALLS, MEANS FOR INTRODUCING A FIRST LIQUID INTO THE MIXING COMPARTMENT, MEANS FOR INTRO DUCING A SECOND LIQUID INTO THE MIXING COMPARTMENT, THE SECOND LIQUID BEING SUBSTANTIALLY INSOLUBLE IN THE FIRST AND OF A DIFFERENT DENSITY, MEANS FOR FORCING GAS UP THROUGH THE PERFORATED BOTTOM TO PRODUCE AN INTIMATE MIXTURE OF THE TWO LIQUIDS, AN ANNULAR SETTLING COMPARTMENT DISPOSED AROUND THE MIXING COMPARTMENT AND HAVING AN IMPERFORATE INNER WALL SURFACE FORMING A BARRIER
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |