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Expired Canadian patentCanada

Humidity comfort offset circuit

CA 1214531 A · Owner: Honeywell Inc. · Inventors: Kompelien, Arlon D.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A humidity responsive circuit is adapted to be connected to a thermostat to provide a humidity comfort offset to the thermostat. The humidity comfort offset circuit can be added as a retrofit item or could be added during the manufacture of an electronic thermostat which has a bridge in its input for measuring the temperature. The humidity comfort offset circuit have an output range with at least one humidity value being equal to the balance value of the bridge.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted November 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1983
GrantedNovember 25, 1986
Term endedNovember 25, 2003
Patent numberCA 1214531 A
Classification (IPC)G05D22/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 24, 1983Patent grantedNov 25, 1986Term endedNov 25, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.