Expired Canadian patentCanada
Aerosol generator for drug formulation
CA 2472570 C · Owner: Philip Morris Usa Inc. · Inventors: Brookman, Donald L.; Grollimund, Gary E.; Nichols, Walter A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aerosol generator (101) and method of delivering aerosol to a user inhaling on an outlet of a mouthpiece (105) when a pressure drop is detected within the mouthpiece (105).
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 January 15, 2003 and granted February 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 15, 2003
GrantedFebruary 26, 2013
Term endedJanuary 15, 2023
Patent numberCA 2472570 C
Classification (IPC)A61M11/00 +2 more
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.