Novel use of hexaflumuron as a termiticide
CA 2136985 C · Owner: Thoms, Ellen M. · Inventors: Sbragia, Ronald J.; Thoms, Ellen M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method for treating a locus for termites which comprises applying to the locus a compound of formula (I) wherein R1 and R2 are each independently hydrogen C1-C3 alkyl or C 1-C3 alkoxy, chloro, bromo or fluoro; X1 and X2 are each independently chloro fluoro, bromo, hydrogen or C1-C3 alkyl; and R is a fluorine containing C1-C4 haloalkoxy group.
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 12, 1993 and granted October 6, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2015.
- 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.