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Expired Canadian patentCanada

Fireplace gas burner assembly

CA 1284765 C · Owner: Cfm Majestic Inc. · Inventors: Rieger, Heinz H.

CIPO record

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

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Abstract From the Canadian patent

A gas burner assembly for a fireplace is shown. The assembly is operative to produce a flickering yellow flame pattern which closely resembles to that produced by a natural wood log fire, yet there is virtually no formation of carbon monoxide gas. The assembly generally comprises four artificial logs arranged in a predetermined spaced relationship to a gas burner. The gas burner consists of an opened top rectangular casing filled with non-combustible particles or a honeycomb gas distribution tile made of refractory material. The gas pipe is located adjacent to the bottom of the casing and having a plurality of openings facing downwards. The artificial log comprises a flexible metal tube …

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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 June 11, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2008.
  • 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 13, 1987
GrantedJune 11, 1991
Term endedJune 11, 2008
Patent numberCA 1284765 C
Classification (IPC)F24C3/04

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 13, 1987Patent grantedJune 11, 1991Term endedJune 11, 2008

Sources & verification

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