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Canadian application, no grantCanada

Oxy-fuel burner

CA 2254191 A1 · Owner: Robillard, Dominique · Inventors: Robillard, Dominique; Arnoux, Stephane

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 oxy-fuel burner comprises at least one fuel supply pipe (16) and at least one pipe (18) for supplying an oxygen-rich gas, the said outlets of the pipes being directed approximately in the same direction, the burner being designed to be mounted through a wall of a furnace with the pipes directed into the furnace. It carries at least one auxiliary member (50, 60) intended to act on the flame and the said auxiliary member (50, 60) is placed on the burner upstream of the zone where the fuel gas and the oxygen-rich gas meet.

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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 November 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 20, 1998
GrantedNo grant recorded
Term endedNovember 20, 2018
Patent numberCA 2254191 A1
Classification (IPC)F23D14/22 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 20, 1998Term endedNov 20, 2018

Sources & verification

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