.alpha.-CHLOROCARBOXYLIC ACIDS
CA 1078403 A · Owner: Takeda Chemical Industries Ltd. · Inventors: Hamuro, Yukihiko; Saraie, Takahiro; Imamiya, Eiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel .alpha.-chlorocarboxylic acids of the formula wherein Y stands for a lower alkyl group having 1 to 6 carbon atoms or a phenyl group, a benzoyl group or a phenylalkyl group having 7 to 11 carbon atoms, which may have a lower alkyl group having 1 to 3 carbon atoms a, lower alkoxy group having 1 to 3 carbon atoms or a halogen on the phenyl rings as a substituent; N is O or an integer from 1 to 4; L stands for a lower alkyl group having 1 to 3 carbon atoms; and Z stands for a carboxyl group or a group convertible to carboxyl group are useful as, for example, remedies for hyperlipemia diabetes and so on of mammals including human beings.
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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 1997.
- 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.