08503269 is referenced by 4 patents and cites 89 patents.

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.

Title
Time dependent-temperature independent color changing label
Application Number
12/713045
Publication Number
8503269 (B2)
Application Date
February 25, 2010
Publication Date
August 6, 2013
Inventor
Alfred S Braunberger
Sequim
WA, US
Agent
Haverstock & Owens
Assignee
Vision Works IP Corporation
WA, US
IPC
G01D 21/00
G04F 8/00
G04F 1/00
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