Expired Canadian patentCanada
Catalytic composition for the selective reduction of nitrogen oxides in oxygenated gas effluents, process for the cleanup of said effluents
CA 1340318 C · Owner: Le Goff, Yannick · Inventors: Hamon, Christian; Le Goff, Yannick
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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
- Granted January 19, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2016.
- 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 30, 1988
GrantedJanuary 19, 1999
Term endedJanuary 19, 2016
Patent numberCA 1340318 C
Classification (IPC)B01D53/56 +2 more
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.