A rapid acting freeze dired oral pharmaceutical composition for treating migraine
CA 2392810 A1 · Owner: Venkateswara Rao, Pavuluri · Inventors: Khadgapathi, Podili; Venkateswara Rao, Pavuluri
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 a novel freeze - dried pharmaceutical composition useful for the treatment of migraine and associated symptoms at a reduced total dose of active substance than required for oral administration in the form of a tablet comtaining a porous matrix net work of a water soluble or water dispersible carrier material, a pharmaceutically active substance(s); organoleptic additives such as sweetening agents flavouring agents, coloring , agents; pharmaceutically acceptable preservatives; solublising agents; surfaceactive agents and/or buffereing agents. The pharmaceutical composition optionally may contain other additives such as permeation enhancers chelating , …
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 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2022.
- 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.