Expired Canadian patentCanada
Ore treating process
CA 119970 A · Owner: The Canadian Cyanide Process Company · Inventors: Muffly, Sidney Theodore
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 June 20, 1909. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 1926.
- 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 20, 1907
GrantedJune 20, 1909
Term endedJune 20, 1926
Patent numberCA 119970 A
Classification (IPC)—
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.