Expired Canadian patentCanada
Treatment of nail infections with no
CA 2453243 C · Owner: Aberdeen University · Inventors: Benjamin, Nigel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Nitrogen oxide generating compositions are useful in the treatment of subungual infections, as NO has surprisingly been found to be able to penetrate the nail to exert an anti-fungal effect.
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 August 2, 2002 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 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.
FiledAugust 2, 2002
GrantedJanuary 3, 2012
Term endedAugust 2, 2022
Patent numberCA 2453243 C
Classification (IPC)A61K31/04 +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.