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Expired Canadian patentCanada

Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same

CA 2447635 C · Owner: Valadez-Castillo, Rafael · Inventors: Margain-Ortiz, Gustavo; Flores-Ponce, Juan Gabriel; Olin-Nunez, Miguel Angel

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Abstract From the Canadian patent

A method and system for feeding and burning pulverized fuel such as , petroleum coke, in a glass melting furnace which includes a glass melting and , a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers the burners are arranged , in , a series of ports that are associated with the glass melting region of the furnace. , The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by , the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the …

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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 March 25, 2002 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 25, 2002
GrantedApril 12, 2011
Term endedMarch 25, 2022
Patent numberCA 2447635 C
Classification (IPC)C03B5/16 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 25, 2002Patent grantedApril 12, 2011Term endedMarch 25, 2022

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