Macrolide compounds
CA 1301749 C · Owner: Fletton, Richard A. · Inventors: Noble, David; Ward, John B.; Ramsay, Michael V.J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds are described of formula (I) (I), and salts thereof, wherein, R1 represents a methyl ethyl or isopropyl group;, R2 is alkyl; alkyl substituted by carboxy or alkoxycarbonyl; alkenyl; phenyl or phenalkyl; R3 is -OH;, OR4 is a hydroxyl group or a substituted hydroxyl group having up to 25 carbon atoms. These compounds may be used for controlling insect acarine, nematode or other pests.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.