Expired Canadian patentCanada
Stainless steel canister for propellant-driven metering aerosols
CA 2373094 C · Owner: Boehringer Ingelheim Pharma Kg · Inventors: Nagel, Juergen; Lostritto, Richard Thomas; Vega, Julio Cesar
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to corrosion resistant stainless steel canisters for propellant-containing aerosol formulations for use in propellant gas-operated inhalers.
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 May 24, 2000 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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.
FiledMay 24, 2000
GrantedJuly 17, 2012
Term endedMay 24, 2020
Patent numberCA 2373094 C
Classification (IPC)B65D83/14 +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.