N-substituted amide derivatives
CA 1328875 C · Owner: Institute Of Materia Medica Of Chinese Academy Of Medical Sciences (The) · Inventors: Zhou, Jin; Sano, Tatsuhiko; Hatayama, Katsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-substituted amide derivative represented by the formula, wherein A is -CH(OH)- or -C(=O)- R1 is a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms and R2 is, an alkyl group having 1 to 6 carbon atoms are, disclosed. These compounds are useful for prevention and therapy for liver diseases.
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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 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.