New aqueous formulations
CA 2070689 C · Owner: Rhone-Poulenc Agrochimie · Inventors: Weber, Paul J.; Chen, Chi-Yu R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition, which is suitable for containment in a water soluble bag as a liquid, or a gel, contains a hazardous product and an electrolyte and water and other additives. Typical hazardous products include agrochemicals such as pesticides plant , growth regulators, plant nutrients. Optionally the composition contains a thickener a solvent, a , dispersant. The water soluble bags used as containerization systems for these compositions may, be made of polyvinylalcohol,
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 June 8, 1992 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2014.
- 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.