Agricultural chemical/resin compositions
CA 1069328 A · Owner: Sanyo Chemical Industries · Inventors: Tanaka, Kenji; Nishida, Kazuo; Takematsu, Tetsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An agricultural chemical which has improved efficiency, long range effectiveness, decreased phytotoxicity in relation to useful plants, and resistance to water leaching and to vaporization. Agrochemicals have come into wide use in increasing yield of crops but they are quite often shortlived because of leaching by water, degradation by bacteria in the soil and/or vaporization. The agricultural chemical composition of the invention which overcomes these drawbacks comprises (A) an agricultural chemical and (B) a film-forming polymer having a soil fixity of at least 40% and a water vapor permeability of 400 - 1,500 g/m2/24 hrs.
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
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.