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Expired Canadian patentCanada

Toilet deodorizer

CA 1305295 C · Owner: Mcfarlane, Wallace · Inventors: Mcfarlane, Wallace

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

Many such devices are known but usually the route fumes from the toilet bowl to a remote fan which discharges same externally and requires considerable ducting and insulation can be difficult. The present device consists of a flat body having upper and lower plates with an extract port at the front and is sandwiched between the toilet seat and the bowl. A battery operated fan is incorporated at one end and draws the air from the bowl and discharges it externally of the bowl after passing it through an activated charcoal filter.

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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.
FiledSeptember 28, 1989
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305295 C
Classification (IPC)E03D9/05

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 28, 1989Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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