Expired Canadian patentCanada
Therapeutic agents
CA 2260337 C · Owner: Pfizer Limited · Inventors: Dack, Kevin Neil; Whitlock, Gavin Alistair
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I):, (see fig. I) where the substituents are as defined herein and salts thereof, are matrix, metalloprotease 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
- Filed January 25, 1999 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 25, 1999
GrantedAugust 19, 2003
Term endedJanuary 25, 2019
Patent numberCA 2260337 C
Classification (IPC)C07C311/46 +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.