Amidines
CA 1097359 A · Owner: Novartis Ag · Inventors: Szczepanski, Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
93073, Abstract of the Disclosure, Phenylformamidines of the formula wherein each of R1, R2 and R3 represents hydrogen C1-C4-alkyl, C1-C4-alkoxy, halogen or trifluoromethyl R4 represents C1-C4-alkyl and A presents -CH2-CH2- -CH2-CH2-CH2-, , or , a process for their manufacture and their use in pest control.
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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 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.