Tire having improved tread portion for reducing formation of anomalies causing user dissatisfaction
CA 2283669 A1 · Owner: Michelin Recherche Et Technique S.A. · Inventors: Janajreh, Ibrahim Mustafa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to a shoulder construction of the tread area of pneumatic tires which provides increased stability and reduced wear. The shoulder construction comprises a decoupling rib having an outer surface arranged circumferentially about the tire on an outer edge of the tread portion. A shoulder rib, which also has an outer surface is arranged inwardly , of an adjacent the decoupling rib. A groove which is defined by the inner and , outer side faces of the decoupling rib and the shoulder rib extends from its , base radially beneath the outer surface of the decoupling rib first diagonally toward and then away from the central radial axis of the shoulder rib. The groove …
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 January 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2021.
- 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.