Powder feeding device
CA 2338722 A1 · Owner: Nilsson, Lars-Gunnar · Inventors: Nilsson, Lars-Gunnar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention discloses a method and a device for de-agglomeration and electrostatic charging of a fine powder preferably intended for inhalation purposes. The electrostatic charging takes place by means of tribo corona , and/or inductive charging. The device according to the invention is particularly intended for being able to dose decomposed powder directly into the inspiration air for administering of for instance, active pharmaceutical , substances alternatively provide a further dosing device (9) with electrostatically charged de-agglomerated powder for an even more controlled dosing of the substance into the inspiration air. De-agglomeration preferably takes place in that two …
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 July 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 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.