Expired Canadian patentCanada
Passive anodization process of copper in molten fluoride medium and its application to the protection of copper parts in fluorine electrolyzers
CA 1323596 C · Owner: Comurhex Societe Pour La Conversion De L'Uranium En Metal Et Hexafluorure · Inventors: Picard, Gerard; Lamirault, Sylvie; Germanaz, Patrick
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
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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
- Granted October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 23, 1988
GrantedOctober 26, 1993
Term endedOctober 26, 2010
Patent numberCA 1323596 C
Classification (IPC)C25D11/34 +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.