Medicament dispenser
CA 2463780 A1 · Owner: Bonvoisin, Cecile Isabelle · Inventors: Vanlandeghem, Anthony; Greger, Ralf; Yasuda, Hirotsugu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser for dispensing a medicament comprising a canister for housing the medicament and a fluid propellant therefor and a drug-dispensing valve wherein one or more of the internal surfaces of the canister and/or valve comprises a fluorinated coating prepared from plasma polymerisation of one or more fluorinated monomers selected from the group consisting of CH2FCF3 and C3F6 is disclosed. Such a coating provides a highly fluorinated coating which prevents adhesion of drug particles to the internal surfaces of the canister and/or valve.
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 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2024.
- 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.