Substituted cyclohexanediones and their herbicidal uses
CA 2054735 A1 · Owner: Secor, Jacob · Inventors: Swisher, Beth A.; Markley, Lowell D.; Secor, Jacob
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present disclosure is directed to substituted cyclohexanedione compounds, the preparation of said compounds compositions, containing said compounds and the use of said compositions in the selective pre- and postemergent kill and control of grassy weeds in the presence of various crop plants.
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
- Filed March 6, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2013.
- 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.