US3856655A
Expired / Lapsed
US
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Vertical gel electrophoresis apparatus
Assignee: Bovril Ltd
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Filing: 1973-01-15
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Granted: 1974-12-24
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Expires: 1993-01-15
Abstract
Abstract An improved vertical gel electrophoresis apparatus comprises a gel cell vertically disposed in a lower buffer tank, the upper surface of said gel cell defining at least part of the bottom of an upper buffer tank and two electrodes for establishing a potential across said gel cell.
Inventors
- 👤 P Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:24
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
159 words
Vertical gel electrophoresis apparatus comprising a rectangular buffer tank divIded into a first compartment and a second compartment by a vertical partition extending upwardly from the base of the tank and wholly across the tank in a plane parallel to two opposite side walls thereof, the first compartment containing a lower buffer tank in which is vertically disposed a gel cell, the lower surface of the gel cell being directly contactable over its whole area with a buffer solution containable within the lower buffer tank, and an upper buffer tank defined by four walls, one of the four walls being a portion of the partition, and at least part of the bottom of which upper buffer tank is defined by the upper surface of the gel cell, means for allowing a buffer solution in the second compartment to overflow into the upper buffer tank and, disposed in each compartment, an electrode for establishing a potential across the gel cell.
Claim 2
Dependent Claim
159 words
Vertical gel electrophoresis apparatus comprising a rectangular buffer tank divIded into a first compartment and a second compartment by a vertical partition extending upwardly from the base of the tank and wholly across the tank in a plane parallel to two opposite side walls thereof, the first compartment containing a lower buffer tank in which is vertically disposed a gel cell, the lower surface of the gel cell being directly contactable over its whole area with a buffer solution containable within the lower buffer tank, and an upper buffer tank defined by four walls, one of the four walls being a portion of the partition, and at least part of the bottom of which upper buffer tank is defined by the upper surface of the gel cell, means for allowing a buffer solution in the second compartment to overflow into the upper buffer tank and, disposed in each compartment, an electrode for establishing a potential across the gel cell.
Claim 3
Dependent Claim
14 words
Apparatus according to claim 1 which also comprises one or more heat exchange elements.
Claim 4
Dependent Claim
19 words
Apparatus according to claim 2 wherein a heat exchange element is provided adjacent each side of the gel cell.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |