High speed ski
CA 2018591 C · Owner: Jacques, Michel · Inventors: Jacques, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snowmobile ski is made of two main parts namely a, steel stiffener and a sole made of ultra high molecular weight polyethylene (UHMW-PE) to which a friction reducing additive has been added. The front handle is molded integrally with the ski sole and then bent back and secured to the sole and stiffener. The sole has upstanding projections on which the stiffener rests so that spaces are provided which allow the sole to deflect when impacted thereby reducing transmission of impacts to the stiffener. The stiffener is formed with a main stiffener and secondary stiffeners provided only when the ski is to be attached to the suspension assembly. The secondary stiffeners coact with the main …
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 June 8, 1990 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2012.
- 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.