Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
Reexamination Certificate
2007-12-11
2007-12-11
Gakh, Yelena G. (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Calorimeter
C422S051000, C422S051000, C604S367000
Reexamination Certificate
active
10806711
ABSTRACT:
A wetness indicator including a pH indicating agent may be a single layer or a multilayer composite. One or more layers of the composite may be used to promote or inhibit environmental fluid contact with the pH indicating agent dispersed within at least a portion of a layer thickness. Fluid travel through the layer thickness may be achieved by layer microporosity and/or addition of fluid regulating additives to the layer. The layer or layers may be polymer layers, ink layers, fibrous layers or combinations thereof. Ink compositions for use making such indicators are also disclosed.
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Gakh Yelena G.
Pearne & Gordon LLP
Precision Laminates Inc.
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