Expired Canadian patentCanada
Chlorination of titanium slags
CA 1093829 A · Owner: Quebec Iron And Titanium Corporation - Fer Et Titane Du Quebec, Inc. · Inventors: Gueguin, Michel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Recovery of titanium as a titanium tetrachloride from slags produced from electrosmelting of relatively low content titanium bearing materials such as ilmenites.
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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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1976
GrantedJanuary 20, 1981
Term endedJanuary 20, 1998
Patent numberCA 1093829 A
Classification (IPC)C22B34/12 +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.