Esters
CA 1058192 A · Owner: Ciba-Geigy Ag · Inventors: Kristiansen, Odd; Drabek, Jozef; Beriger, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thiophosphoric and dithiophosphoric acid esters of the formula wherein R1 represents methyl or ethyl, R2 represents n-propyl isobutyl, or sec.-butyl, R3 and R4 each represents hydrogen chlorine, bromine, methyl or ethyl, methoxy or ethoxy R5 represents, -OCOCH3, -O-C3-C5-alkenyl -O-C3-C5-alkinyl, -O-C1-C4-alkylene-, O-C1-C4-alkyl -O-CH2-CCl=CH2, -O-CH2-CH=CHCl, , -S-C3-C5-alkenyl SCN, -CH3-CCl=CH2, -CH2CH=CHCl, -CHO, . , , , , , , , , , , , , -CH-N-C1-C4-alkyl -CH-N-NH-C1-C4-alkyl or, and, X represents oxygen or sulphur processes for their manufacture, and their use in pest control. - 2 -
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 July 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 1996.
- 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.