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Expired Canadian patentCanada

Porous unicondylar knee

CA 2431096 C · Owner: Zimmer Technology, Inc. · Inventors: Hodorek, Robert A.

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 unicondylar femoral component for use in a partial knee arthroplasty. A femoral component of the present invention comprises a post and a flange having a pre- determined angle there between whereby a clamping force is placed on a patient's distal femur to hold the implant in place. The implant further comprises a porous layer on its bone contacting surface. In an alternative embodiment the femoral component is attached to the distal femur at least two threaded fasteners.

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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 June 4, 2003 and granted January 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2025.
  • 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 4, 2003
GrantedJanuary 11, 2011
Term endedJune 4, 2023
Patent numberCA 2431096 C
Classification (IPC)A61F2/38 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJune 4, 2003Patent grantedJan 11, 2011Term endedJune 4, 2023

Sources & verification

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