Medicaments
CA 2435982 C · Owner: Sanders, Mark · Inventors: Sanders, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a bimodal pharmaceutical composition comprising effective amounts of a first active ingredient which substantially comprises a coarse fraction and a second active ingredient which substantially comprise a fine fraction characterised in that the coarse fraction possesses a greater mass median aerodynamic diameter (MMDA) than the fine fraction. There is also described a method of a method of delivering a therapeutically effective amount of a substantially fine active ingredient to the lung of a patient by the co-administration with a substantially coarse active ingredient.
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 February 5, 2002 and granted May 6, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2024.
- 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.