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Expired Canadian patentCanada

Humidifier provided with a purifier

CA 1301055 C · Owner: Goldstar Co. Ltd. · Inventors: Kim, Hyung Kun

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

The present invention relates to a humidifier in which feed water is effectively fed into a purifier. The humidifier according to the invention comprises a ventilation tube through which the air between a valve body and the level of purified water in a humidifying cistern is outwardly ventilated when, the level of the purified water in the humidifying cistern is lowered below the valve body.

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 26, 1987
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301055 C
Classification (IPC)A61M11/02 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 26, 1987Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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