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Programmable thermostat incorporating air quality protection

  • US 7,150,408 B2
  • Filed: 05/17/2004
  • Issued: 12/19/2006
  • Est. Priority Date: 05/05/2003
  • Status: Expired due to Fees
First Claim
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1. A programmable temperature control apparatus for the control of temperature in communication with a temperature-modifying device and an air circulating system comprising:

  • a user-operable input connected for entering air filter duration input information;

    a controller programmed to control a thermal output of said temperature-modifying device to achieve a desired temperature, and generate air filter duration output information based upon said air filter duration input information entered at said user-operable input and the length of time that said air circulating system has operated subsequent to resetting prior air filter duration output information; and

    a display for displaying said air filter duration output information.

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