Artificial ski slope surface
CA 2502726 A1 · Owner: Nike Land Securities Ltd. · Inventors: Nike, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a two-part artificial ski slope surface comprising a looped filament carpet and a resilient base layer and in addition a looped filament carpet which may be attached to a base layer. The looped filament carpet provides a continuous carpet pile, which may have a random directional weave and loops of different heights to provide different surface characteristics in addition, the material used for the looped filament carpet may also be selected to provide different surface characteristics. The characteristics of the surface are selected to provide surface having different degrees of difficulty and for allowing for different frictional contact between the surface and …
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 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.