New ginkgolide derivatives and a process for preparing them
CA 2177736 A1 · Owner: Lee, Suk Kwan · Inventors: Ryu, Geun Ho; Kwak, Wie Jong; Park, Pyeong Uk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to new ginkgolide derivatives which may be used for the prevention or treatment of various PAFinduced diseases, and the pharmaceutical uses of theses derivatives. The present invention is also directed to a process for preparing these ginkgolide derivatives.
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 30, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2016.
- 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.