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Expired Canadian patentCanada

Apparatus for the treatment of gases in a positive crankcase ventilation system

CA 2094065 C · Owner: Gekko International L.C. · Inventors: Dalupan, Romulo V.

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

An apparatus for the treatment of gases in a positive crankcase ventilation (PCV) system, in an internal combustion engine is provided, with a housing defining a gas treatment chamber. Gas filtering media is passed through the chamber and the gases from the engine crankcase are passed throughout the gas filtering media in the chamber before, the gases are routed into the air intake portion of the engine.

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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

  • Filed April 15, 1993 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 15, 1993
GrantedFebruary 20, 2001
Term endedApril 15, 2013
Patent numberCA 2094065 C
Classification (IPC)F02D33/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedApril 15, 1993Patent grantedFeb 20, 2001Term endedApril 15, 2013

Sources & verification

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