Tire tread relief elements having undulated or broken line incisions
CA 1212606 A · Owner: Michelin & Cie (Compagnie Generale Des Etablissements Michelin) · Inventors: Flechtner, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tire tread comprises elements in relief provided with undulated or broken line incisions. These incisions which are of a width of less than 1 mm have smaller amplitudes, at the bottom of the incisions than at the surface of the tread.
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 October 14, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 2003.
- 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.