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Expired Canadian patentCanada

A spoked wheel for tyres

CA 2547536 C · Owner: Cappellotto, Guido · Inventors: Cappellotto, Guido

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 spoked wheel (1) includes a rim (2) with a plurality of holes (21) for a respective plurality of nipples (5) and an equal plurality of spokes (4) secured to the rim (2) by means of these nipples (5). The nipples are arranged to be fitted so as to be substantially gastight in the respective holes (21) in the rim for the purpose of fitting tubeless tyres to the rim.

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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 December 17, 2004 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 17, 2004
GrantedOctober 9, 2012
Term endedDecember 17, 2024
Patent numberCA 2547536 C
Classification (IPC)B60B21/06

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 17, 2004Patent grantedOct 9, 2012Term endedDec 17, 2024

Sources & verification

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