Stimulus indicating device employing polymer gels

Horology: time measuring systems or devices – Miscellaneous

Reexamination Certificate

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C116S200000

Reexamination Certificate

active

08077554

ABSTRACT:
The present invention relates to a stimulus-indicating device. More particularly, the present invention relates to an apparatus and method for evidencing when a product has been exposed to a designated stimulus for a certain period of time.

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