Powder inhaler
CA 2500262 A1 · Owner: Zierenberg, Bernd · Inventors: Schiewe, Joerg; Hochrainer, Dieter; Dunne, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a powder inhaler (1) comprising a mouthpiece (2) for dispersing pharmaceutical medicinal formulations. Said powder inhaler (1) comprises an auxiliary source of energy in the form of a pressurized medium system (3) and a device for storing (6) a powdered formulation (7). A gaseous pressurized medium (8) released by the pressurized medium system (3) forms an aerosol together with the powdered formulation (7) such that the powder particles are supplied in a dispersed manner in the gaseous pressurized medium (8) when said pressurized medium system is actuated. The aim of the invention is to create a powder inhaler (1), by means of which a particle size and …
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 September 5, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.