Expired Canadian patentCanada
Process and facility for the treatment of sulfur dioxide-containing gas effluents with oxygen
CA 1340777 C · Owner: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude · Inventors: Cocolios, Panayotis; Ledon, Henry; Louise, Jean
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 October 5, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 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.
FiledFebruary 24, 1988
GrantedOctober 5, 1999
Term endedOctober 5, 2016
Patent numberCA 1340777 C
Classification (IPC)C01B17/77 +1 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.