Method for producing an aerosol
CA 2374232 C · Owner: Universidad De Sevilla · Inventors: Ganan-Calvo, Alfonso; Rosell, Joan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of creating small particles by a technology referred to here as "violent focusing" is disclosed, along with devices for generating such violent flow focusing. In general, the method comprises the steps of forcing a liquid (9) out of the exit opening (6) of the feeding tube (5) to create a liquid stream. The exit opening (6) is positioned such that the liquid (9) flowing out of the tube (5) flows toward and out of an exit orifice (7) of a pressure chamber (10) which surrounds the exit opening (6) of the feeding tube (5). The liquid flow is broken into particles (18) which have dimensions which are smaller than the dimensions of the liquid stream.
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 June 9, 2000 and granted August 20, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 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.