Improved solubility fertilizer compounds and compositions
CA 2403953 A1 · Owner: Rotem Amfert Negev Ltd. · Inventors: Yosef, Alexander; Oren, Yaakov; Zukerman, Isaac
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fertilizer compositions, comprising at least one double salt of the formula XH5(PO4)2, wherein X is K or NH4. The double salt may be KH5(PO4)2 (HKP) or (NH4)H5(PO4)2 (HAP). The fertilizer compositions may further contain other nutrient components that may be chosen from the group consisting of calcium nitrate, calcium phosphate, and chelated and/or non-chelated micronutrients. The chelated and/or non-chelated micronutrients may be chosen from the group consisting of salts of iron, manganese copper, zinc and molybdenum.
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 March 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2023.
- 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.