Insecticides and parasiticides
CA 1325207 C · Owner: O'Sullivan, Anthony Cornelius · Inventors: O'Sullivan, Anthony Cornelius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Insecticides and parasiticides, Abstract The present invention relates to novel derivatives of formula I that can be derived from milbemycins, to their preparation and their use for controlling pests, and also to pesticides that contain at least one of these compounds as active ingredient. The novel compounds have the general formula I (I), in which, X is one of the groups -CH(OR1)- -C(O)- or -C(=N-OR)-;, R1 is hydrogen or an OH-protecting group; R is hydrogen, an OH-protecting group, or an alkyl or cycloalkyl group; R2 is methyl, ethyl, isopropyl or sec.-butyl; and, Ph is a phenyl ring that is substituted by Ra Rb, Rc and Rd, wherein, each of Ra, Rb Rc and Rd, independently of the others …
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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
- Granted December 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 2010.
- 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.