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Expired Canadian patentCanada

Wheel assembly comprising a tire with truncated cone base beads, a flat base rim and a rubber ring adapter, and adapter design for said assembly

CA 2065307 C · Owner: Compagnie Generale Des Etablissements Michelin - Michelin & Cie · Inventors: Gergele, Jean

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In order to increase the diameter of the standardized rim (J') comprising a mounting groove and normally used for a tubeless tyre (P) and provided with beads whose seats are angled the tyre (P) is mounted on a rim (J) having a cylindrical rim bottom deprived of any groove and whose diameter is larger than the diameter of the groove of the rim (J') by means of two vulcanized rubber adapters (S1) resisting compression and reinforced with meridian and circumferential elements. Primary application for wheel and tyre assemblies in trucks with single or twin wheels, using rims with 15 DEG seats.

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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 July 12, 1991 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 12, 1991
GrantedNovember 12, 2002
Term endedJuly 12, 2011
Patent numberCA 2065307 C
Classification (IPC)B60C15/02 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 12, 1991Patent grantedNov 12, 2002Term endedJuly 12, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.