Fixed spike, respectively sleeve-mounted spike, fitted on a vehicletyre
CA 1287560 C · Owner: Neste Oy · Inventors: Linden, Unto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a fixed spike or a sleevemounted spike, fitted on a vehicle tire. The spike is shaped so that when it is in its state at rest its region in contact with the rubber is substantially smaller than the total surface area of the respective region of the spike, the flow caused by the, visco-elastic properties of the rubber of the rubber around the, spike, being arranged to soften the first contact between the tip of the fixed spike or the rivet of the sleeve-mounted spike and the road surface.
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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.