5-(6-imidazo1,2-apyridyl)pyridine derivative
CA 1309718 C · Owner: Ohhara, Hideto · Inventors: Ohhara, Hideto; Yamanaka, Motosuke; Suda, Shinji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
5-(6-Imidazo1,2-apyridyl)pyridine derivatives represented by general formula;, wherein x represents hydrogen atom or methyl group; Y represents cyano group, carboxamido group hydrogen atom, amino group or a halogen atom; Z represents hydrogen atom or a lower alkyl group; W represents hydrogen atom or a lower alkyl group; R1 represents hydrogen atom a lower alkyl, group, phenyl group, a group shown by formula: -CH2R4 in which R4 is a lower alkoxy group, or a group shown by formula: in which R5 and R6 are hydrogen atom or a lower alkyl group; R2 represents hydrogen atom or a halogen atom; and R3 represents hydrogen atom, a lower alkyl group or a halogen atom; or a tautomer thereof; and …
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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 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.