Pneumatic tire of elastic material without reinforcement
CA 1105364 A · Owner: Michelin & Cie (Compagnie Generale Des Etablissements Michelin) · Inventors: Herbelleau, Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic tire comprising a tread at a crown and a body which comprises, on both sides of the crown a shoulder, extended by a sidewall terminated by a bead and formed of, elastic material without reinforcement is characterized by the fact that the reaius of curvature ?m of the meridian profile of the inner wall follows the law, at least in the portion of the pneumatic tire located radially outward of the points where the meridian profile reaches its greatest axial distance from the equatorial line,
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 July 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 1998.
- 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.