Moisture protected powder inhaler
CA 2383425 A1 · Owner: Seppala, Kari · Inventors: Seppala, Kari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A powder inhaler comprises a powder container (1) an air channel (11), a , metering member (3) equipped with a dosing recess (5) an actuating means (7) , for the displacement of the metering member (3) between the filling and the inhalation position, and a closure element (16) for plugging the air channel (11) in a substantially water-proof manner when the metering member (3) is in the filling position and opening the air channel (11) when the metering member (3) is in the inhalation position. When the inhaler is not in use the closure , element (16) prevents moisture and dirt entering the sensitive parts of the device.
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 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 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.