US3149060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoresis method and apparatus
Assignee: International Minerals and Chemical Corp
•
Filing: 1959-01-13
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Granted: 1964-09-15
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Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Dobry Reuven
- 👤 Robert K Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N27/44769
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR SEPARATING CHARGED PARTICLES IN A VERTICAL FLOW CHAMBER BY ELECTROPHORESIS COMPRISING: VERTICALLY INTRODUCING AT THE LOWER PART OF SAID CHAMBER A BODY OF CARRIER LIQUID AND FLOWING THE SAME VERTICALLY UPWARDLY IN THE FORM OF AN ELONGATED STREAM UNDER FORCED LAMINAR FLOW CONDITIONS; VERTICALLY INTRODUCING, AT A LOWER PART OF SAID CHAMBER ONLY IN THE CENTRAL PORTION OF SAID FLOWING CARRIER LIQUID, THE MIXTURE OF CHARGED PARTICLES TO BE SEPARATED AND FLOWING THE SAME VERTICALLY UPWARDLY WITH SAID CARRIER LIQUID; MAINTAINING SAID UPWARDLY VERTICAL FLOW WHILE APPLYING A HORIZONTAL ELECTRIC FIELD AT RIGHT ANGLES TO THE LONGITUDINAL AXIS OF SAID VERTICALLY ELONGATED FLOWING STREAM TO FORM HORIZONTALLY SPACED BANDS OF CHARGED PARTICLES IN ACCORDANCE WITH THEIR ELECTROPHORETIC MOBILITIES; AND SEPARATELY REMOVING THE RESULTING SEPARATED BANDS
Claim 2
Dependent Claim
128 words
A PROCESS FOR SEPARATING CHARGED PARTICLES IN A VERTICAL FLOW CHAMBER BY ELECTROPHORESIS COMPRISING: VERTICALLY INTRODUCING AT THE LOWER PART OF SAID CHAMBER A BODY OF CARRIER LIQUID AND FLOWING THE SAME VERTICALLY UPWARDLY IN THE FORM OF AN ELONGATED STREAM UNDER FORCED LAMINAR FLOW CONDITIONS; VERTICALLY INTRODUCING, AT A LOWER PART OF SAID CHAMBER ONLY IN THE CENTRAL PORTION OF SAID FLOWING CARRIER LIQUID, THE MIXTURE OF CHARGED PARTICLES TO BE SEPARATED AND FLOWING THE SAME VERTICALLY UPWARDLY WITH SAID CARRIER LIQUID; MAINTAINING SAID UPWARDLY VERTICAL FLOW WHILE APPLYING A HORIZONTAL ELECTRIC FIELD AT RIGHT ANGLES TO THE LONGITUDINAL AXIS OF SAID VERTICALLY ELONGATED FLOWING STREAM TO FORM HORIZONTALLY SPACED BANDS OF CHARGED PARTICLES IN ACCORDANCE WITH THEIR ELECTROPHORETIC MOBILITIES; AND SEPARATELY REMOVING THE RESULTING SEPARATED BANDS
References Cited (Backward Citations)
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US2555487A
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US2801962A
Cited
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |