Apparatuses, indicators, methods and kits with timed color change indication
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United States of America Patent
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Aug 29, 2017
Grant Date -
Mar 26, 2015
app pub date -
Sep 26, 2013
filing date -
Sep 26, 2013
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Abstract
An apparatus, method and kit includes one or more use protocol indicators having a color changeable dye, the dye being translucent or having a first color upon immediate exposure to an environment and for a defined time thereafter and the dye changing color after exposure to the environment for the defined time. A dual environment indicator includes a first indicator color changeable dye being translucent or having a first color upon immediate exposure to a first environment and changing color after exposure to a second environment and a second indicator color changeable dye being translucent or having a first color upon immediate exposure to the second environment and for a defined time thereafter and changing color after exposure to the second environment for the defined time. A time exposure indicator comprises at least one color changeable dye disposed to change color in a sequential manner.
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