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US3829370A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for forced flow electrophoresis

Assignee: Rhone Poulenc SA
•
Filing: 1972-03-28
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Granted: 1974-08-13
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Expires: 1992-03-28
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Abstract

Abstract A CONTINUOUS FORCED FLOW ELECTROPHORESIS CELL AND A METHOD OF OPERATION FOR THE FRACTIONATION OF AN AQUEOUS LIQUID, SUCH AS BLOOD, CONTAINING AT LEAST TWO COMPOUNDS, THE RELATIVE MOBILITIES OF WHICH IS AN ELECTRIC FIELD VARY AS A FUNCTION OF THE PH, IN ORDER TO OBTAIN ONE FRACTION ENRICHED AND ONE DEPLETED IN ONE OF THE COMPOUNDS, THE CELL HAVING SIX COMPARTMENTS DIVIDED BY ION PERMEABLE MEMBRANES, THE END CELL CONTAINING AN ANODE AND CATHODE RESPECITIVELY, THE CENTRAL CELLS BEING SEPARATED BY A MICROPOROUS MEMBRANE. THE LIQUID IS FED TO ONE OF THE CENTRAL CELLS THE FILTERED FRACTION BEING REMOVED, AFTER PASSAGE THROUGH THE MICROPOROUS MEMBRANE, FROM THE OTHER. A MAIN ELECTROLYTE TO THE INTERMEDIATE CELLS AND AN AUXILIARY ELECTROLYTE TO THE INTERMEDIATE CELLS SUCH THAT THE PH IN ONE INTERMEDIATE CELL DIFFERS FROM THAT OF THE OTHER.

Inventors

  • 👤 G Bourat

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 06:35
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01D; B01D57/00; B01D57/02; G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44769

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1977-08-12 1978-02-11 1978-08-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-12 1982-02-11 1982-08-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-12 1986-02-11 1986-08-13 $7700.00 Window Closed / Lapsed

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