System and method for introducing systemic treatment liquids into trees and similar plants
CA 1086500 A · Owner: Quast, Danny H. · Inventors: Fermenich, Dennis R.; Quast, Danny H.; Granof, Herman H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The system for injecting a systemic treatment liquid into trees and similar plants includes a plurality of substantially identical injector nozzles each of which, is insertable into one of a plurality of circumferentially spaced injector holes in the tree, a plurality of substantially identical sealed containers containing the treatment liquid in a predetermined quantity suitable for a single treatment through one of the injector holes and having a discharge conduit which is closed by a frangible member, a flexible strap or belt adapted to be wrapped around the tree at a location above the injector holes a plurality, of substantially identical connecting hose assemblies each, having one end …
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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
- Granted September 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 1997.
- 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.