Method for increasing fertilizer efficiency
CA 2270817 A1 · Owner: Mcintyre, John L. · Inventors: Kinnersley, Alan M.; Mcintyre, John L.; Kinnersley, Cheng-Yuh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification describes combinations of fertilizer with certain organic compounds to increase fertilizer efficiency plant productivity, growth, and , nutrient accumulation. These beneficial effects are accomplished using combinations of a fertilizer and an amino acid selected from .gamma.aminobutyric acid, glutamic acid, and a mixture of .gamma.-aminobutyric acid and glutamic acid. A source of proteinaceous amino acids and a carbon skeleton may also be used with the fertilizer and the amino acid. The specification describes compositions and methods employing such combinations to take advantage of their beneficial effects.
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 November 4, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2019.
- 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.