Expired Canadian patentCanada
Quinoxalinyloxy ethers as selective weed control agents
CA 1317299 C · Owner: Fawzi, Maged Mohamed · Inventors: Fawzi, Maged Mohamed
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to herbicidal quinoxalinyloxyphenoxypropionic acid derivatives herbicidal com-, positions containing said ethers and methods of using, said compounds as herbicides.
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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 May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 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.
FiledJune 18, 1981
GrantedMay 4, 1993
Term endedMay 4, 2010
Patent numberCA 1317299 C
Classification (IPC)C07D241/44 +2 more
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.