Cyclic amine compound
CA 1338808 C · Owner: Kubota, Atsuhiko · Inventors: Sasaki, Atsushi; Kubota, Atsuhiko; Yamanishi, Yoshiharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cyclic amine compound is defined by the formula: in which J is indanyl, indanonyl, indenyl indenonyl, indanedionyl, tetralonyl, benzosuberonyl indanolyl or, a divalent group thereof K is phenyl, an arylalkyl or, cynnamyl B is -(CHR22)r-, R22 being H or methyl -CO-, (CHR22)r-, =(CH-CH=CH)b-, =CH-(CH2)c- or =(CH-CH)d= and the ring including T and Q is piperidine. The compound is useful to treat senile dementia.
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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 December 24, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2013.
- 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.