Plant growth regulator for increasing crop yield comprising polyprenol and extraction method thereof
CA 2439740 A1 · Owner: Kwon, Seong-Ryong · Inventors: Kwon, Seong-Ryong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a plant growth regulator for increasing crop yield comprising polyprenol as represented by formula (I) below. The plant growth regulator for increasing crop yield according to the invention can offer high productivity of crops at lower cost compared to the conventional , growth regulators. Further the plant growth regulator provides a high germination effect of crops and uniformity of plant growth thereby making it , possible to mechanically harvest in an easy manner. Also it can offer an , increasing effect on crop yield in cereals as well as vegetables and fruits thereby being capable of contributing to agricultural development.
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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 March 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2024.
- 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.