Chemistry: analytical and immunological testing – Including sample preparation – Liberation or purification of sample or separation of...
Reexamination Certificate
2005-12-20
2008-08-19
Warden, Jill (Department: 1797)
Chemistry: analytical and immunological testing
Including sample preparation
Liberation or purification of sample or separation of...
C436S174000, C436S176000, C422S105000, C422S105000, C422S105000, C204S606000, C204S613000
Reexamination Certificate
active
07413908
ABSTRACT:
A gel extraction device comprising a hollow cutting member having a cutting edge at one end and a squeeze bulb at the other end. In a further embodiment, the air passage between the cutting edge and the bulb has a constriction zone to prevent any extracted gel from being drawn too deeply into the extractor. In a further embodiment, a blow-hole in the hollow cutting member or in the squeeze bulb provides for the passage of air displaced by gel through the extractor. The blow-hole may be covered to secure the gel in the receptacle for transfer from the matrix to a sample container.
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Caldwell Dale
Caldwell Jeremy
Clouser Leon
Handy Dwayne K
Murphy Desmond S.C.
Warden Jill
Yang Frank Z.
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