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Expired Canadian patentCanada

Method for the treatment of exhaust gases containing organosilicon components or accompanying substances, and apparatus therefor

CA 2548438 C · Owner: Neese, Olaf · Inventors: Carlowitz, Otto; Rueskamp, Bernd; Neese, Olaf

CIPO record

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Abstract From the Canadian patent

The invention relates to a method and an apparatus for treating exhaust gases comprising, organosilicon components or accompanying substances. The invention more specifically, relates to the use of bulk regenerator materials as storage materials allowing periodic, removal, purification, and redelivery to the system. The invention solves the problem of, clogged regenerator-storage materials during regenerative post-combustion of exhaust, gases containing organosilicon components.

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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 December 7, 2004 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 7, 2004
GrantedJanuary 8, 2013
Term endedDecember 7, 2024
Patent numberCA 2548438 C
Classification (IPC)B01D53/70 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 7, 2004Patent grantedJan 8, 2013Term endedDec 7, 2024

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