Method for protecting crops from suffering damages
CA 1095280 A · Owner: Kyowa Hakko Kogyo Co. Ltd. · Inventors: Kawai, Masanobu; Konnai, Makoto; Takematsu, Tetsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Crops are protected from suffering various damages by applying polyamine compounds such as long-chain alkylenediamines. By the use of said polyamine compounds various effects can, be obtained, for example reduction of injury from, herbicides, reduction of cold-weather damage or frost damage to crops, retardation of fading of green color of green crops reduction of damage from photochemical oxidants to crops retardation of wilting of leaves of crop plant etc. In particular, the effect of reducing injury from herbicides is remarkable.
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 February 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 10, 1998.
- 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.