Inhibitory or blocking agents of molecular generating and/or inducing functions
CA 2396745 C · Owner: Yamaguchi, Yoshihiro · Inventors: Koyama, Shozo; Yamaguchi, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an inhibiting or blocking agent of molecular generating and/or inducing functions represented by formula 1-a:, (see formula 1-a), wherein among other possible groups, R1, R2, R3 R4, R5 , and R6 represent independently hydrogen atom; halogen atom; C1-C6 alkyl group; amidino group; C3-C8 cycloalkyl group; C1-C6 alkoxy C1-C6 alkyl group; aryl group; allyl group; aralkyl group in which one or more C1-C6 alkyl groups are bound to an aromatic ring selected from the group consisting of benzene, naphthalene and anthracene ring; C1-C6 alkylene group; benzoyl group; cinnamyl group; cinnamoyl group or furoyl group.
Read the whole patent
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
- Filed September 7, 1995 and granted August 23, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2017.
- 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.