Row unit down pressure assembly
CA 2545664 C · Owner: Harnetiaux, Travis Lester · Inventors: Harnetiaux, Travis Lester; Bettin, Leonard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A down pressure assembly for incorporation into an agricultural implement to be pulled by a tractor (10) has an attachment frame (21) for attachment between a portion of the agricultural implement and at least two wheels (22) of a row , unit (18) for traveling along the ground the row unit (18) also having a tool , (23) disposed between the two wheels (22) for engaging the ground the down , pressure , assembly also having at least one torsion element (41 50) disposed on the , frame , (21), with the torsion element (41 50) having one fixed mounting to the frame (21) , and one adjustable mounting to the frame (21) and the assembly further having , an , adjustment mechanism (37 60) for …
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
- Filed May 4, 2006 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.