Thiophene 2-carboxamide derivatives and their use as pharmaceuticals
CA 1338845 C · Owner: Lilly Industries Limited · Inventors: Hotten, Terrence Michael; Tupper, David Edward; Fernandez Fernandez, Maria Isabel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical compound of the formula in which R1 is -CHO, -CH2OH, -CH2OC1-4 alkyl -COC1-3 alkyl, -CH(OH)C1-3 alkyl or -COOH R is C1-4 alkyl, -CHO, -CH2OH, -CH2OC1-4 alkyl -COC1-3 alkyl, -CH(OH)C1-3 alkyl or -COOH R3, is C1-4 alkyl and X is pyrrolidinyl or pyrrolidinylmethyl; and salts and esters 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 January 14, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 14, 2014.
- 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.