Spray coated microparticles for use in needleless syringes
CA 2345945 A1 · Owner: Maa, Yun-Fun · Inventors: Maa, Yun-Fun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Spray-coated pharmaceutical powder compositions for transdermal administration using a needless syringe comprise seed particles coated with a pharmaceutical composition, the said coated seed particles having an average size of about 10 to 100 µm and having an envelope density ranging from about 0.1 to about 25g/cm3.
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 October 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 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.