Expired Canadian patentCanada
Herbicidal aryl triazolinones
CA 1291753 C · Owner: Fmc Corporation · Inventors: Theodoridis, George
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicidal compounds of the formula in which, for example, X is Br, Cl or F; Y is Cl or Br, R2 is CHF2, R3 is CH3 R is lower alkyl and R1 is H, Na, lower alkyl or -SO2R.
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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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 8, 1986
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291753 C
Classification (IPC)C07D249/12 +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.