An improved process for the preparation of new antidiabetic agents
CA 2346941 A1 · Owner: Siripragada, Mahender Rao · Inventors: Gaddam, Om Reddy; Mamillapalli, Ramabhadra Sarma; Siripragada, Mahender Rao
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 an improved process for the preparation of novel antidiabetic compounds having formula (1) where R1 represents hydrogen or lower alkyl group and X represents hydrogen or halogen atom.
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 April 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.
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.