US3932262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electrophoresis apparatus using minimum electrolyte
Assignee: California Institute of Technology
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Filing: 1973-10-15
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Granted: 1976-01-13
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Expires: 1993-10-15
Abstract
Abstract An electrophoresis unit for use in conducting electrophoretic analysis of specimens is disclosed. The unit includes a sealable container in which a substrate mounted specimen is suspended in an electrolytic vapor. A heating unit is employed to heat a supply of electrolyte to produce the vapor. The substrate is suspended within the container by being attached between a pair of clips which also serve as electrodes to which a direct current power source may be connected.
Inventors
- 👤 Mario R. Stevens
- 👤 John Michael Vickers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:06
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
112 words
An electrophoresis unit that is useable for conducting electrophoretic analyses of specimens mounted on substrates that have been saturated with an electrolyte, said electrophoresis unit comprising: a sealable container having an interior cavity defined by container walls; means for sustaining a saturated electrolytic vapor in said cavity of said container; and electrode means for suspending said substrate within said cavity of said container, said electrode means extending from outside said container through the walls thereof and including a pair of securing members for suspending said substrate therebetween and within said cavity, and a pair of terminal members respectively connected to said securing members for being connected to provide direct current power thereto.
Claim 2
Dependent Claim
112 words
An electrophoresis unit that is useable for conducting electrophoretic analyses of specimens mounted on substrates that have been saturated with an electrolyte, said electrophoresis unit comprising: a sealable container having an interior cavity defined by container walls; means for sustaining a saturated electrolytic vapor in said cavity of said container; and electrode means for suspending said substrate within said cavity of said container, said electrode means extending from outside said container through the walls thereof and including a pair of securing members for suspending said substrate therebetween and within said cavity, and a pair of terminal members respectively connected to said securing members for being connected to provide direct current power thereto.
Claim 3
Dependent Claim
40 words
The electrophoresis unit defined by claim 1 wherein the means for sustaining a saturated vapor includes: a supply of electrolyte situated within the cavity of said container; and means for heating said supply of electrolyte to produce said electrolytic vapor.
Claim 4
Dependent Claim
25 words
The electrophoretic unit defined by claim 1 wherein the substrate on which a specimen is mounted is maintained physically separated from said supply of electrolyte.
Claim 5
Dependent Claim
18 words
The electrophoresis unit defined by claim 1 wherein said pair of securing members are a pair of clips.
Claim 6
Dependent Claim
24 words
The electrophoresis unit defined by claim 1 wherein the electrode means further includes spring members for connecting said securing members to said terminal members.
Claim 7
Dependent Claim
21 words
The electrophoresis unit defined by claim 2 wherein said means for heating is molded into a bottom wall of said container.
Claim 8
Dependent Claim
25 words
The electrophoretic unit defined by claim 6 wherein the substrate on which a specimen is mounted in maintained physically separated from said supply of electrolyte.
Claim 9
Dependent Claim
24 words
The electrophoresis unit defined by claim 7 wherein the electrode means further includes spring members for connecting said securing members to said terminal members.
Claim 10
Dependent Claim
18 words
The electrophoresis unit defined by claim 8 wherein said pair of securing members are a pair of clips.
Claim 11
Dependent Claim
103 words
An electrophoretic cell that is useable for electrophoretic analysis of specimens applied to substrates that have been saturated with an electrolyte including a solvent, said electrophorectic cell comprising: a sealable container having walls defing an interior cavity; means for providing a saturated vapor of said solvent in said interior cavity of said container; and electrode means for allowing electrical current to be conducted through said substrate from a power source connected to said electrode means external to said interior cavity and for holding said substrate in said saturated vapor wherein said saturated vapor serve to counter evaporation of said solvent from said substrate.
Claim 12
Dependent Claim
103 words
An electrophoretic cell that is useable for electrophoretic analysis of specimens applied to substrates that have been saturated with an electrolyte including a solvent, said electrophorectic cell comprising: a sealable container having walls defing an interior cavity; means for providing a saturated vapor of said solvent in said interior cavity of said container; and electrode means for allowing electrical current to be conducted through said substrate from a power source connected to said electrode means external to said interior cavity and for holding said substrate in said saturated vapor wherein said saturated vapor serve to counter evaporation of said solvent from said substrate.
Claim 13
Dependent Claim
33 words
The electrophoretic cell defined by claim 10, wherein said means for providing a saturated vapor includes: a supply of said solvent in said container; and means for heating said supply of said solvent.
Claim 14
Dependent Claim
19 words
The electrophoretic cell defined by claim 11, wherein said electrode means includes means for being attached to said substrate.
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) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |