TIME DEPENDENT-TEMPERATURE INDEPENDENT COLOR CHANGING LABEL
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Abstract
A timing device for indicating a passage of a duration of time is disclosed. The timing device in accordance with the embodiments of the invention has a grid array architecture. The grid array architecture includes an electrode structure with an anode layer, a cathode layer and a thermistor layer. The anode layer and the thermistor layer are electrically coupled through a plurality of cathode trace structures. In operation the timing device is actuated through a suitable mechanism to initiate depletion of the anode layer and, thereby, indicate a passage of a duration time. As the anode layer depletes, sequential cathode trace structures are exposed and the thermistor layer acts as a temperature dependent resistor through a plurality of exposed cathode trace structures.
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Citations
48 Claims
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1-26. -26. (canceled)
- 27. A timing device comprising a group of isolated electrochemical depletion zones grouped together in order to collectively indicate a passage of time.
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35. A timing system comprising:
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a. an activator for activating the timing system; and b. a plurality of isolated electrochemical depletion zones positioned adjacent along an axis of the timing system at evenly spaced intervals in order to collectively indicate a passage of time. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A timing device comprising grid array architecture, comprising:
a plurality of individual timing zones, each comprising a same timing distance and grouped to collectively indicate a passage of time, and wherein one or more depletion patterns are uncovered as the timing device depletes. - View Dependent Claims (43, 44, 45, 46, 47, 48)
Specification