Airbrake
CA 2422968 A1 · Owner: Microdrug Ag · Inventors: Myrman, Mattias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device is disclosed for controlling the duration of an administration of a prescribed dose of dry powder to a user's lung when inhaling the powder by means of a dry powder inhaler (DPI). The present device controls the speed of a moving cassette (4) carrying medication powder doses to be administered by the DPI one by one to a user. Generally the dose is pre-metered and applied to the cassette in the form of a strip (31) or a series of spots of readyprepared powder. The present device using the airbrake arrangement (22) prolongs the time during which the pre-metered powder dose is released to the inhalation air. Adjustment means of the airbrake arrangement (22) define leakage of …
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 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2023.
- 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.