Patent US3579433A successfully refreshed from Google Patents.
US3579433A
Expired / Lapsed
US
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Vertical column electrophoresis apparatus
Assignee: Pharmacia and Upjohn Co
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Filing: 1968-04-24
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Granted: 1971-05-18
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Expires: 1988-04-24
Abstract
Abstract AN APPARATUS FOR GEL ELECTROPHORESIS OF PROTEINACEOUS MATERIALS INCLUDES AN ELECTROPHORETIC GEL COLUMN, MEANS TO ESTABLISH A SUBSTANTIALLY UNIFORM UNIDRECTIONAL POTENTIAL LONGITUDINALLY ACROSS THE COLUMN, AND A COLLECTION CHAMBER BELOW THE COLUMN. A BUFFER SOLUTION ENTERS THE COLLECTION CHAMBER AND RADIALLY SWEEPS THE PROTEINACEOUS MATERIAL ENTERING THE CHAMBER FROM THE COLUMN TOWARD A CENTRALLY SITUATED EXIT MEANS AND DOWNWARDLY THERETHROUGH.
Inventors
- 👤 Donald A Dahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:33
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |