5-methanesulfonyl-2, 4-diphenylpyrimidine derivatives
CA 1330439 C · Owner: Kawamura, Shinichi · Inventors: Hamada, Tatsuhiro; Kawamura, Shinichi; Sato, Junichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound of the formula: wherein R1 represents a hydrogen atom, or a halogen atom, a (C1 to C3)-alkyl group, a halo-(C1 to C3)-alkyl group, a (C1 to C6)-alkoxy group which may contain an unsaturated bond, a (C1 to C2)-alkylthio group a halo-(C1, to C6)-alkoxy group which may contain an unsaturated bond, a halo-(C1 to C2)-alkylthio group a phenoxy group, a (C1 to C3)-alkylcarboxy group a halo-(C1 to C3)-, alkylcarboxy group a (C1 to C2)-alkoxy-(C1 to C2)-alkoxy, group a (C1 to C3)-alkylsulfonyloxyl group, a halo-(C1 to C3)-alkylsulfonyloxy group, a cyano group a (C1 to, C3)-alkoxycarbonyl group, a hydroxycarbonyl group an, aminomethyl group or a hydroxymethyl group at the ortho or meta …
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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 June 28, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2011.
- 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.