Apparatus for burning gas in the combustion chamber of a fireplace
CA 2016972 C · Owner: Karabin, Tadeusz · Inventors: Beal, Thomas J.; Karabin, Tadeusz; Mundy, Roy E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and gas burner assembly for producing amongst the arrangement of non-combustible logs, and essentially yellow flame pattern with substantially low levels of carbon monoxide production. In general, method hereof employs a gas burner assembly having one or more burner each having a plurality of gas jets. The burner assembly is disposed between the combustion chamber of fireplace enclosure which contains a predetermined volume of combustion chamber air which is continuously provided from outside of the combustion chamber. Non-combustible fireplace logs are arranged above the gas burner assembly so as to provide one or more flow pathss between the burner and adjacent logs for allowing, …
Read the whole patent
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 May 18, 1990 and granted February 8, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.