Expired Canadian patentCanada
Diaryl compounds and their use
CA 1320908 C · Owner: Flockerzi, Dieter · Inventors: Flockerzi, Dieter; Ulrich, Wolf-Rudiger; Klemm, Kurt
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Optically pure diaryl compounds of formula I (I), wherein the substituents and symbols have the meanings given in the specification are proposed as active ingredients in medicaments for the treatment of tumors.
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 August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 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.
FiledFebruary 17, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320908 C
Classification (IPC)A61K31/45 +2 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.