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System and method of monitoring temperature

  • US 7,140,768 B2
  • Filed: 04/14/2003
  • Issued: 11/28/2006
  • Est. Priority Date: 07/15/2002
  • Status: Expired due to Fees
First Claim
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1. A device for monitoring temperature over a period of time, said device comprising:

  • (a) a temperature sensor for taking temperature measurements, and(b) a central processing unit (CPU) in electrical connection with said temperature sensor, said CPU comprising memory, said memory consisting of volatile memory into which the temperature measurements are stored, said volatile memory storing no more than a single temperature measurement at a time,(c) wherein said device is free of memory external to said CPU.

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