Mixture of bacilllus thuringiensis subspecies israelensis and bacillus sphaericus for management of resistance to mosquito larvicides
CA 2438230 C · Owner: Valent Biosciences Corp. · Inventors: Devisetty, Bala N.; Dechant, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for controlling Dipteran larvae or a method for inhibiting the development of larvicidal resistance, controlling resistant populations and reducing resistance levels in Diptera by introducing a larvicidally-effective amount of a combination of a strain of Bacillus thuringiensis subspecies israelensis and a strain of Bacillus sphaericus into an environment containing Dipteran larvae; and a composition of the combination are disclosed. Preferably both strains are non-genetically modified.
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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 13, 2002 and granted September 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.