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Expired Canadian patentCanada

Hip resurfacing

CA 2528699 C · Owner: Ashton, Roger William Frank · Inventors: Mcminn, Derek James Wallace; Ashton, Roger William Frank

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 guide wire location means having a base which is secured to the head of a femur but allows the wire guide connected to the base to be spherically adjusted.

Read the whole patent

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 June 11, 2004 and granted May 29, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 2004
GrantedMay 29, 2012
Term endedJune 11, 2024
Patent numberCA 2528699 C
Classification (IPC)A61B17/17

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 11, 2004Patent grantedMay 29, 2012Term endedJune 11, 2024

Sources & verification

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