US4576702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytical electroelution device
Assignee: International Biotechnologies Inc
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Filing: 1984-11-05
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Granted: 1986-03-18
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Expires: 2004-11-05
Abstract
Abstract A simplified electroelution receptacle designed to receive and process a plurality of small biological samples simultaneously facilitating efficient recovery of biological particles in a highly concentrated manner with a minimum of undesirable liquid.
Inventors
- 👤 Lawrence J. Peck
- 👤 John H. Kreisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:40
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/44739
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
An electroelution device for removing and collecting charged biological particles from a plurality of small gel slices or samples simultaneously comprising at least two fluid tight compartments separated by a bridge element, said bridge element being formed with a plurality of spaced recesses defining sample supports, said bridge being further formed with a plurality of conduits, one conduit being individual to each sample support and each conduit having a first outlet communicating with a mating sample support and a second outlet communicating with one of said compartments.
Claim 2
Dependent Claim
87 words
An electroelution device for removing and collecting charged biological particles from a plurality of small gel slices or samples simultaneously comprising at least two fluid tight compartments separated by a bridge element, said bridge element being formed with a plurality of spaced recesses defining sample supports, said bridge being further formed with a plurality of conduits, one conduit being individual to each sample support and each conduit having a first outlet communicating with a mating sample support and a second outlet communicating with one of said compartments.
Claim 3
Dependent Claim
17 words
The device of claim 1 in which the first and second outlets are offset from one another.
Claim 4
Dependent Claim
20 words
The device of claim 2 in which the first outlets are coplanar and are offset vertically from the second outlets.
Claim 5
Dependent Claim
20 words
The device of claim 3 in which the first outlets are elevated relative to the disposition of the second outlets.
Claim 6
Dependent Claim
16 words
The device of claim 4 in which the conduits define a generally V-shaped configuration between outlets.
Claim 7
Dependent Claim
22 words
The device of claim 5 in which a portion of each conduit is offset vertically relative to the elevation of all outlets.
Claim 8
Dependent Claim
28 words
The device of claim 6 in which the conduits are generally V-shaped and the apex of the V is lower in elevation than the elevation of all outlets.
Claim 9
Dependent Claim
29 words
The device of claim 7 in which the bridge element is fitted with a valve means which includes ports which communicates selectively with both compartments and with the atmosphere.
Claim 10
Dependent Claim
55 words
The device of claim 8 in which the valve means is settable (a) to a first position in which opposed ports provide communication between both compartments, (b) to a second position in which said communication is cut-off, (c) to a third position in which said opposed ports and thus the compartments communicate with the atmosphere.
Claim 11
Dependent Claim
28 words
The device of claim 9 in which the bridge element is provided with an overflow port which provides a by-pass to the atmosphere independently of the valve means.
Claim 12
Dependent Claim
24 words
The device of claim 10 in which each compartment is fitted with an electrode leading to a fixed electrical connection mounted in the receptacle.
Claim 13
Dependent Claim
24 words
The device of claim 11 in which at least one compartment is fitted with cooling tubes for the circulation of coolant for controlling temperature.
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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |