Apparatus and method for double shoot sowing of seed and/or fertilizer
CA 2099555 A1 · Owner: Hergott, Brent Gerald · Inventors: Hergott, Brent Gerald; Poncelet, Robert James; Henry, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention disclosed is a method for single or double shoot sowing of seed and/or fertiliser wherein two parallel lines of seed and/or fertiliser are deposited at different depths without substantial, unwanted, disruption of the surface soil and an apparatus used in conjunction with a conventional furrow opener and material deposited that creates a furrow with at least one edge wall. The apparatus has a cutting edge that cuts a lateral furrow in an edge wall of a first furrow a, deflecting surface that covers first material deposited in the first furrow with soil from the lateral furrow, and a conduit that deposits second material along a lines above parallel, and adjacent to, the line. …
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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 July 2, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2015.
- 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.