Expired Canadian patentCanada
Basic magnesium salts, processes, and lubricants and fuels containing the same
CA 951709 A · Owner: The Lubrizol Corporation · Inventors: Gergel, William C.; Karn, Jack L.; King, Laurence E.
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 July 23, 1974. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 1991.
- 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—
GrantedJuly 23, 1974
Term endedJuly 23, 1991
Patent numberCA 951709 A
Classification (IPC)C10M159/20 +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.