Expired Canadian patentCanada
Stable perovskite catalysts
CA 1062690 A · Owner: E.I. Du Pont De Nemours And Company · Inventors: Lauder, Alan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Perovskite catalysts of the general formula ABO3 having increased stability through the incorporation of metals having low first ionization potentials and their, use in oxidation and reduction reactions. - 1 -
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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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedSeptember 18, 1979
Term endedSeptember 18, 1996
Patent numberCA 1062690 A
Classification (IPC)B01J23/00 +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.