Alpha-heterocycle substituted tolunitriles
CA 1316928 C · Owner: Ciba-Geigy Ag · Inventors: Steele, Ronald Edward; Bowman, Robert Mathews; Browne, Leslie Johnston
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4-15785/+/CGC 1184, Alpha-Heterocycle Substituted Tolunitriles Abstract of the Disclosure, Compounds of the formula I (I), wherein the groups R, R0, R1, R2 and W are as defined in the specification, exhibit valuable pharmacological properties especially as aromatase inhibitors.
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 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2010.
- 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.