Crop harvesting apparatus
CA 2038783 C · Owner: The National Research Development Corporation · Inventors: Hobson, Robert Norris; Nguyen, Vien Ngoc; Hale, Oliver Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for harvesting required crop parts from standing crop, leaving stripped stems in the field comprises a crop stripping rotor under a hood. A plurality of outwardly projecting crop stripping elements are mounted on the rotor and move upwardly and rearwardly as the apparatus moves forwardly into the crop. The distal tips of the elements enter the crop and move upwardly through the crop, gathering one or more crop stems. Between adjacent crop stripping elements two succeeding relief regions are provided. Gathered crop enters the first relief region and required parts are stripped by edges of the relief region. Stripped stems pass to the second relief region for easy release and in …
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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
- Filed August 6, 1990 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2012.
- 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.