Pesticidal carboxylates
CA 1093563 A · Owner: Shell Canada Limited · Inventors: Davies, John H.; Bull, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pesticidal cyclopropyl carboxylates having the the following general formula:-, (I), wherein X is a halogen atom; R1 is a hydrogen atom or an alkyl group; R2 is an alkyl group; or R1 and R2 together represent an alkylene chain;, R3 is a hydrogen atom a cyano enthynyl or thioamide, group; and, R is a phenoxyphenyl benzylphenyl, phenylthiophenyl, benzylfuryl halophenyl. phthalimido, tetrahydro-, phthalimido or halophenoxyphenyl 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
- Granted January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- 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.