Microstructured time dependent indicators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 25, 2004
Grant Date -
N/A
app pub date -
May 15, 2000
filing date -
May 15, 2000
priority date (Note) -
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Abstract
The invention provides microstructured time dependent indicators including timers, time/temperature indicators, etc. The indicators are preferably highly accurate and easy to read. The invention also includes indicators which are game pieces, calendars, greeting cards, etc. The indicators function by flow of a material through channels of a microstructured substrate.
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