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Expired Canadian patentCanada

Taper-bead seat rim and assembly thereof with a tire

CA 2069745 C · Owner: Compagnie Generale Des Etablissements Michelin - Michelin & Cie · Inventors: Billieres, Jean

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A single-piece wheel rim (J') having tapered seats (2') inclined at 15° U 1° with greatly reduced axial widths (P') relative to the axial widths (P) of known tapered seats (2) and having a reduced height (H') mounting well (3') leaving more room for the brake elements. A wheel rim (J') of this kind can be combined with a tyre (T) having beads with truncated toes to provide beads with greater fatigue strength while allowing easy mounting. The invention relates to tyres and wheel rims for heavy vehicles.

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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 November 8, 1991 and granted January 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 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.
FiledNovember 8, 1991
GrantedJanuary 9, 2001
Term endedNovember 8, 2011
Patent numberCA 2069745 C
Classification (IPC)B60C15/02 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 8, 1991Patent grantedJan 9, 2001Term endedNov 8, 2011

Sources & verification

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