Self-stabilizing snowmobile ski - - m-profile or inverted w-profile wear bar for ski
CA 2378638 C · Owner: Lachance, Ghislain · Inventors: Lachance, Ghislain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snowmobile ski equipped with two longitudinal blades and a central wear slide. The sliding underside of the ski includes a thicker central section and thinner wings. On each side of the central section is a blade intended to trace a path through the snow. The center of the central section under the ski includes a V-shaped depression as such defining an M or reverse W shaped structure. An M or reverse W shaped removable wear slider may be added to an existing ski to make a snowmobile ski self-stabilizing.
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 April 4, 2002 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2024.
- 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.