Plant food and method for its use
CA 1284590 C · Owner: Henderson, Wayne E. · Inventors: Henderson, Wayne E.; Kinnersley, Alan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plant food with superior growth promoting properties that comprises a mixture of steepwater and other sources of nitrogen phosphorus, and potassium. The optimum proportion of steepwater and other materials in the plant food is determined by analysis of growth response using the technique of response surface methodology.
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 June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2008.
- 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.