Heterocyclic compounds having antibacterial activity, process for their preparation and pharmaceutical compositions containing them
CA 2433138 A1 · Owner: Sundarababu, Baskaran · Inventors: Lohray, Braj Bhushan; Das, Jagattaran; Ramanujam, Rajagopalan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel oxazolidinone compounds of the general formula (I) where R1, R2, R3, Y1, Y1, Y2 Y3, and Z are as defined in the , description; their derivatives their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts their pharmaceutically acceptable solvates and pharmaceutical compositions containing them.
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 December 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 26, 2023.
- 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.