Expired Canadian patentCanada
0-(5-trifluoromethylpyrid-2-yl) phosphoric acid esters
CA 1231100 A · Owner: Bayer Aktiengesellschaft · Inventors: Riebel, Hans-Jochem; Behrenz, Wolfgang; Homeyer, Bernhard
Overview
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pesticidally active phosphoric acid ester of the formula in which, Y is oxygen, sulphur or -NR- R is hydrogen or alkyl, X is oxygen or sulphur and, R1 and R2 each independently is alkyl.
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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 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 2005.
- 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 25, 1985
GrantedJanuary 5, 1988
Term endedJanuary 5, 2005
Patent numberCA 1231100 A
Classification (IPC)C07F9/58 +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.