Wheel track filling apparatus
CA 2444306 A1 · Owner: Klompien, Layne · Inventors: Klompien, Layne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a novel and practical track-filling apparatus for smoothing rutted soil formed by the repeated passage of wheels. This invention comprises a frame, a.means for attaching the frame to a tractor and a soil moving blade assembly , mounted to the frame. This blade assembly has laterally disposed and spaced apart left and right, blades. A means for adjusting the included blade angle between these blades is also, provided. This means includes a single blade adjusting hydraulic ram that is operatively, connected to the blades via a novel yet simple and reliable linkage assembly. Additionally, means for lifting and tilting the apparatus optimizes operation of this invention …
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 October 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2025.
- 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.