Expired Canadian patentCanada
Control of sea lice in seawater fish
CA 2106295 C · Owner: Grampian Pharmaceuticals Limited · Inventors: Braidwood, Julian Charles; Johnston, Philip Ivan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pyrethroid pesticide, particularly cypermethrin or alphacypermethrin are used , in the treatment of seawater fish suffering from sea lice infestation.
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 March 16, 1992 and granted November 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 16, 1992
GrantedNovember 2, 1999
Term endedMarch 16, 2012
Patent numberCA 2106295 C
Classification (IPC)A61K31/27 +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.