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Expired Canadian patentCanada

Lever with shifting fulcrum point

CA 2533992 C · Owner: Gotohti.Com Inc. · Inventors: Anhuf, Martin; Ophardt, Hermann

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 lever with a shifting pivot or fulcrum point such that in pivoting of the lever between a first position and a second position for at least one angular segment of such pivoting about a first fulcrum point and for a second angular sector of such pivoting pivots about a second fulcrum point.

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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 January 25, 2006 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 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.
FiledJanuary 25, 2006
GrantedSeptember 24, 2013
Term endedJanuary 25, 2026
Patent numberCA 2533992 C
Classification (IPC)F04B9/04 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 25, 2006Patent grantedSep 24, 2013Term endedJan 25, 2026

Sources & verification

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