Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Reexamination Certificate
2006-10-02
2009-08-04
Alexander, Lyle A (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
C422S051000, C436S001000, C436S002000, C436S164000, C436S165000, C604S082000, C424S010100, C433S226000
Reexamination Certificate
active
07569185
ABSTRACT:
A pre-dosed, pre-packaged mixing system and associated method for mixing, storing, and dispensing a two-part dental composition that becomes less stable upon mixing. The mixing system includes a pre-dosed, pre-packaged quantity of a first component contained within a first chamber, and a pre-dosed, pre-packaged quantity of a second component contained within a second chamber. The chambers are separated by separation means so as to separate the two-components prior to mixing. Once mixed, the practitioner is able to record a mixing and/or expiration date on at least a portion of the mixing system so as to indicate a shelf-life of the less stable mixed dental composition.
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Office Action dated Aug. 29, 2008 cited in U.S. Appl. No. 11/673,334.
Alexander Lyle A
Ultradent Products Inc.
Workman Nydegger
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