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Expired Canadian patentCanada

Buffer for trekking or nordic walking pole

CA 2608654 C · Owner: Heim, Eberhard · Inventors: Heim, Eberhard

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

The invention describes a buffer (2) for a stick (1) in particular for a , walking stick or a trekking or Nordic-Walking pole. The buffer (2) has means (10) for being attached to a stick tube (Ia) in particular in the form of a , recess at its upper end (4) and a rolling surface (5) at its lower end. In this case, the rolling surface (5) is of substantially flat or only slightly convex design in a transverse direction (22) in relation to the rolling motion but in a longitudinal direction (21) which is perpendicular thereto is convexly curved in such a way that it forms a rolling surface on a base surface (3) during the pushing-off movement with the stick when the user of the stick …

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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 May 22, 2006 and granted December 2, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2026.
  • 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.
FiledMay 22, 2006
GrantedDecember 2, 2014
Term endedMay 22, 2026
Patent numberCA 2608654 C
Classification (IPC)A45B9/04

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 22, 2006Patent grantedDec 2, 2014Term endedMay 22, 2026

Sources & verification

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