Agricultural microcapsule and production thereof
CA 2086077 C · Owner: Kitagawa, Kazutaka · Inventors: Akashi, Kanji; Kitagawa, Kazutaka; Tanabayashi, Chikara
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are a microcapsule comprising an agricultural active ingredient with improved physical properties and an, agricultural composition comprising the microcapsule. The agricultural microcapsule has a diameter or not more than 50 µm and comprises an agricultural active ingredient in a water-soluble coating material. As the agricultural composition comprising the microcapsule, DL dust, solidified emulsifiable concentrate can be provided. According to the present invention the agricultural, active ingredient is stabilized agricultural dust can be mixed, with even an incompatible liquid agricultural active ingredient, and the agricultural microcapsule has excellent handling properties.
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 December 22, 1992 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 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.