Cutterbar having cutting discs equipped for converging crop
CA 2228814 C · Owner: Mellin, Michael James · Inventors: Mellin, Michael James; Rosenbalm, Allan Wesley; Verhulst, Michael Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mower-conditioner has a header equipped with a rotary cutterbar for severing crop and directing it to a crop conditioner spanning a crop discharge opening centered rearwardly of the cutterbar and having a width some-what less than the length of the cutterbar. The cutter discs at the extreme outer ends of the cutterbar are equipped with upright crop, converging drums. For shorter cutterbars paddles are mounted only to the tops of the cutter discs at the extreme outer ends of the cutterbars for operating in conjunction with the converging drums to move cut crop inwardly and rearwardly to the crop conditioner. For \cutterbars of an intermediate length, paddles are also provided on the pair …
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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 March 6, 1998 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2020.
- 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.