Herbicide composition
CA 2000513 A1 · Owner: Heath, Roger Palmerston · Inventors: Heath, Roger Palmerston
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ICIA Case 1414, Abstract, Herbicide composition A herbicidal composition comprises an aqueos solution of an N-(phosphonomethyl)glycine herbicide which comprises an effective quantity of at least one alkyl glucoside the alkyl, glucoside having an alkyl:glucose molar ratio of from 1:1.3-1:1.6. Preferably, the alkyl glucose ratio is 1:1.4 and the alkyl glucoside comprises from 20% -45% by weight of the the total non-volatile context of the composition. The compositions are especially useful for killing grass weeds.
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 October 12, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2011.
- 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.