Soil treating composition and method of applying same
CA 2102632 C · Owner: Sylling, Truman V. · Inventors: Boyd, Larry C.; Allen, Stephen L.; Sylling, Truman V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A weed eradicating substance, and a desalination substance. A method of use includes irrigating the soil with water prior, to planting, to cause the germination of weed seeds and thereafter applying a desalination agent to increase weed seed germination. An application of the inventive pesticide then causes a much larger number of weeds to be eradicated. An improved fertilizer and a method of making and using it, to enhance plant nutrient uptake. The improved fertilizer includes nitrogenous nutrients and a desalination ingredient. In one form of the invention a surfactant is also employed to improve the speed of the increased nutrient uptake ability of the plants.
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 May 26, 1992 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2014.
- 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.