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US3764513A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrophoresis chamber

Assignee: Marine Colloids Inc
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Filing: 1972-05-04
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Granted: 1973-10-09
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Expires: 1992-05-04
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Abstract

Abstract Electrophoresis apparatus with adjacent compartments arranged to hold buffer solution, means for supporting in position an impervious backing member having a gel layer on its upper surface, a cover with an aperture for applying samples and a layer of bibulous material fixed to the cover so as to be in contact with gel and the buffer solution when the cover is in position.

Inventors

  • 👤 C Saravis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:20
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 191 words
In electrophoresis apparatus comprising a pair of adjacent compartments each constructed and arranged to hold a supply of buffer solution, an electrode in each said compartment in position to be submerged in the respective supply of buffer solution and means for connecting said electrodes to a source of electrical potential, and means for supporting in position above the surface of said supplies of buffer solution an impervious backing member having an electrophoresis gel layer on its upper surface, the improvement comprising a cover for said compartments having an aperture positioned over the location of said gel layer arranged to permit introduction therethrough of material to be subjected to electrophoresis, said cover having secured to its bottom adjacent each opposite side of said aperture a layer of bibulous material in position to bear upon each opposing margin of said gel layer, each said layer of bibulous material extending laterally away from said aperture to a position beyond the margin of said underlying gel layer, thence downwardly into one of said compartments, each said layer of bibulous material being constructed and arranged to come into contact with its respective supply of buffer solution.
Claim 2
Dependent Claim 191 words
In electrophoresis apparatus comprising a pair of adjacent compartments each constructed and arranged to hold a supply of buffer solution, an electrode in each said compartment in position to be submerged in the respective supply of buffer solution and means for connecting said electrodes to a source of electrical potential, and means for supporting in position above the surface of said supplies of buffer solution an impervious backing member having an electrophoresis gel layer on its upper surface, the improvement comprising a cover for said compartments having an aperture positioned over the location of said gel layer arranged to permit introduction therethrough of material to be subjected to electrophoresis, said cover having secured to its bottom adjacent each opposite side of said aperture a layer of bibulous material in position to bear upon each opposing margin of said gel layer, each said layer of bibulous material extending laterally away from said aperture to a position beyond the margin of said underlying gel layer, thence downwardly into one of said compartments, each said layer of bibulous material being constructed and arranged to come into contact with its respective supply of buffer solution.
Claim 3
Dependent Claim 21 words
Apparatus as claimed in claim 1 including means for advancing said backing member with its gel layer along said supporting means.
Claim 4
Dependent Claim 33 words
Apparatus as claimed in claim 1 in which said supporting means for said backing member extends over said compartments and is provided with slots through which said layer of bibulous material extends downwardly.
Claim 5
Dependent Claim 205 words
In electrophoresis apparatus comprising a pair of adjacent compartments each constructed and arranged to hold a supply of buffer solution, the improvement comprising removable means for supporting in position above the surface of said supplies of buffer solution an impervious backing member having an electrophoresis gel layer on its upper surface, said supporting means including a pair of electrodes and means for supporting each said electrode in each of said compartments in posiTion to contact the respective supply of buffer solution and means for detachably connecting said electrodes to a source of electrical potential, and a cover for said compartments having an aperture positioned over the location of said gel layer arranged to permit introduction therethrough of material to be subjected to electrophoresis said cover having secured to its bottom adjacent each opposite side of said aperture a layer of bibulous material in position to bear upon each opposing margin of said gel layer, each said layer of bibulous material extending laterally away from said aperture to a position beyond the margin of said underlying gel layer, thence downwardly into one of said compartments, each said layer of bibulous material being constructed and arranged to come into contact with its respective supply of buffer solution.
Claim 6
Dependent Claim 205 words
In electrophoresis apparatus comprising a pair of adjacent compartments each constructed and arranged to hold a supply of buffer solution, the improvement comprising removable means for supporting in position above the surface of said supplies of buffer solution an impervious backing member having an electrophoresis gel layer on its upper surface, said supporting means including a pair of electrodes and means for supporting each said electrode in each of said compartments in posiTion to contact the respective supply of buffer solution and means for detachably connecting said electrodes to a source of electrical potential, and a cover for said compartments having an aperture positioned over the location of said gel layer arranged to permit introduction therethrough of material to be subjected to electrophoresis said cover having secured to its bottom adjacent each opposite side of said aperture a layer of bibulous material in position to bear upon each opposing margin of said gel layer, each said layer of bibulous material extending laterally away from said aperture to a position beyond the margin of said underlying gel layer, thence downwardly into one of said compartments, each said layer of bibulous material being constructed and arranged to come into contact with its respective supply of buffer solution.
Claim 7
Dependent Claim 23 words
Apparatus as claimed in claim 4 in which the means for supporting each said electrode comprises a baffle extending downwardly into each compartment.
Claim 8
Dependent Claim 26 words
Apparatus as claimed in claim 5 in which the detachable electrical connection means comprises a connection between said support means and the wall of the compartment.

References Cited (Backward Citations)

US24752A Cited
US3371027A Cited
US3407133A Cited
US3494846A Cited
US3674678A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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