Botanical drug substances comprising various proportions of thc and cbd
CA 2994322 A1 · Owner: Gw Pharma Limited · Inventors: Downs, David Victor; Flockhart, Ian R.; Gibson, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a botanical drug substance obtainable from botanical raw material from a high CBD containing cannabis plant having a CBD content, wherein said botanical drug substance is an extract derived from the high CBD cannabis plant comprising 50% CBD w/w of extract, no more than 7.5% THC as %w/w of the CBD content, and no more than 5% cannabinoids other than CBD and THC as %w/w of the CBD consent. The botanical drug substances of the invention may be used to prepare pharmaceutical formulations.
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 August 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2025.
- 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.