Expired Canadian patentCanada
N-(mercaptoacyl)-histidine
CA 1114385 A · Owner: Santen Pharmaceutical Co. Ltd. · Inventors: Oya, Masayuki; Fujita, Tadashi; Watanabe, Toshio
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel N-(mercaptoacyl)-histidines represented by the formula, (I), wherein n is 1 or 2 which have antiarteriosclerosis activity and to a pro-, cess for the manufacture thereof.
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
- Granted December 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 15, 1977
GrantedDecember 15, 1981
Term endedDecember 15, 1998
Patent numberCA 1114385 A
Classification (IPC)C07D233/64 +1 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.