Cross country ski
CA 1315307 C · Owner: Jackson, James E. · Inventors: Jackson, James E.; Wardlow, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cross country ski having a bottom running surface with a plurality of grooves formed thereon. Each groove has a central portion extending transversely to the length of the ski and two lateral portions slanting rearwardly and outwardly from the forward portion. Each groove has a surface slanting toward a flat portion coincident with the running surface, in a manner that at any transverse location on the bottom of the ski a portion of the bottom surface is in contact with the surface of the snow.
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
- Granted March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2010.
- 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.