Process and apparatus for the fine dispersion of liquids or powders in a gaseous medium
CA 2007195 C · Owner: Szocs, Istvan · Inventors: Szocs, Istvan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A process for the fine dispersion of a liquid or powder charge into a gaseous medium, preferably air. The liquid or powder charge is placed into an ejection tube and a, pressurized gaseous propellant is conducted at explosion-like speed behind the charge. The apparatus has an ejection tube containing the liquid or powder charge a propellant container, connected with one end of the ejection tube. The ejection tube and propellant container are interconnected by at least one transfer port closed by a quick action locking element.
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.
Why it's free to use
- Filed January 4, 1990 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2012.
- 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.