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Timing system and device and method for making the same

  • US 9,188,962 B2
  • Filed: 10/31/2012
  • Issued: 11/17/2015
  • Est. Priority Date: 11/01/2011
  • Status: Expired due to Fees
First Claim
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1. A timing device comprising:

  • a. a first timing component comprising a first indicator for indicating a cumulative time period; and

    b. a second timing component comprising a second indicator for indicating a second time period comprising a time that the timing device has been exposed to a predefined temperature during the cumulative time period,wherein the first timing component and the second timing component are independently activated, and wherein the second timing component is automatically activated by the ambient temperature reaching the predefined temperature.

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