Critical temperature indicator and manufacturing method thereof
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United States of America Patent
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Jan 12, 2016
Grant Date -
Nov 21, 2013
app pub date -
Jan 20, 2012
filing date -
Jan 26, 2011
priority date (Note) -
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Abstract
An upper section is formed of a base film. A developing media member is formed of a micro-porous film to be positioned correspondingly to the upper section such that the developing media member is joined with the upper section. A time control section is formed by engraving a movement path of developing media on the developing media member by means of a printer, cutter or the like. At least one or more cutaway sections and a plurality of transparent members are positioned on the time control section, wherein the cutaway sections are positioned at both side surfaces of the time control section corresponding to the movement path so as to temporarily store the developing media, and the transparent members have linear-shaped first display windows so as to display the arrival of the developing media, which indicates the end of the movement of the developing media.
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