Patent US4314897A successfully refreshed from Google Patents.
US4314897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoretic gel container
Assignee: Beckman Coulter Inc
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Filing: 1980-07-01
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Granted: 1982-02-09
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Expires: 2000-07-01
Abstract
Abstract An electrophoretic gel container. The device includes a base and a cover. The gel is adherently bound to a backing sheet. The cover is positioned to clamp the backing sheet between it and the base. The cover is spaced from the gel.
Inventors
- 👤 Charles S. Monte
- 👤 Wayne S. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:10
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; Y; Y10; Y10S; Y10S435/00; Y10S435/809; Y10S435/81
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A device for containing an electrophoretic gel specimen, said gel specimen including a lower surface, said device comprising: a backing sheet in adherent contact with said lower surface, said sheet having a greater surface area than said contacted lower surface such that at least a portion of said sheet extends beyond said contacted lower surface; a base configured to receive said backing sheet; and a cover, cooperative with said base and contacting at least a part of said portion to secure said portion between said cover and said base, said cover being spaced from said gel specimen.
Claim 2
Independent Claim
97 words
A device for containing an electrophoretic gel specimen, said gel specimen including a lower surface, said device comprising: a backing sheet in adherent contact with said lower surface, said sheet having a greater surface area than said contacted lower surface such that at least a portion of said sheet extends beyond said contacted lower surface; a base configured to receive said backing sheet; and a cover, cooperative with said base and contacting at least a part of said portion to secure said portion between said cover and said base, said cover being spaced from said gel specimen.
Claim 3
Independent Claim
93 words
A device for containing a substantially planar gel layer, said gel layer having a predetermined defined perimeter, said device comprising: a backing sheet in adherent contact with at least a portion of said gel layer, said sheet having a greater surface area than said contacted portion such that a portion of said sheet extends beyond said predetermined defined perimeter; a base adapted to support said sheet; and a cover, alignable with said base to secure said portion of said sheet therebetween, said cover configured so as to be spaced from said gel layer.
Claim 4
Independent Claim
93 words
A device for containing a substantially planar gel layer, said gel layer having a predetermined defined perimeter, said device comprising: a backing sheet in adherent contact with at least a portion of said gel layer, said sheet having a greater surface area than said contacted portion such that a portion of said sheet extends beyond said predetermined defined perimeter; a base adapted to support said sheet; and a cover, alignable with said base to secure said portion of said sheet therebetween, said cover configured so as to be spaced from said gel layer.
Claim 5
Dependent Claim
25 words
Device according to claims 1 or 2 further including means for pressuring said cover against said base thereby clamping said portion of said sheet therebetween.
Claim 6
Dependent Claim
37 words
Device according to clams 1 or 2 wherein said cover includes: a top surface; and securing means connected to said top surface, said securing means cooperative with said base for clamping said portion of said sheet therebetween.
Claim 7
Dependent Claim
37 words
Device according to clams 1 or 2 wherein said cover includes: a top surface; and securing means connected to said top surface, said securing means cooperative with said base for clamping said portion of said sheet therebetween.
Claim 8
Dependent Claim
23 words
Device according to claims 1 or 2 further including means, contacting said base and said cover, for sealing said base against said cover.
Claim 9
Independent Claim
75 words
A device for containing a substantially planar gel layer having an upper surface, a lower surface, and edge surfaces, said device comprising: a backing sheet in adherent contact with said lower surface, a portion of said sheet extending beyond said edge surfaces; a base adapted to receive said sheet; and a cover, positioned on said base so as to contain said portion therebetween, said cover being spaced from said upper surface and said edge surfaces.
Claim 10
Independent Claim
75 words
A device for containing a substantially planar gel layer having an upper surface, a lower surface, and edge surfaces, said device comprising: a backing sheet in adherent contact with said lower surface, a portion of said sheet extending beyond said edge surfaces; a base adapted to receive said sheet; and a cover, positioned on said base so as to contain said portion therebetween, said cover being spaced from said upper surface and said edge surfaces.
Claim 11
Dependent Claim
39 words
Device according to claims 1, 2 or 6 further including a moisture-proof enclosure enveloping said base and said cover thereby pressing said cover against said base and clamping said portion of said sheet between said base and said cover.
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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) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |