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Expired Canadian patentCanada

Joint prosthesis and apparatus for preparing the bone prior to fitting of the prosthesis

CA 2136100 C · Owner: Albrektsson, Bjorn · Inventors: Carlsson, Lars; Rostlund, Tord; Wennberg, Stig

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 relates to a prosthesis for uni-condylar or bi-condylar replacement of a joint in a human body and in particular to the tibia side of a knee joint. By means of an elongate fixture, a prosthetic plate is secured in position in a pre-prepared tibia portion and is allowed to heal, without further surgery being required. The invention also relates to a device for preparing the knee joint for prosthetic reception.

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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 14, 1993 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2015.
  • 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 14, 1993
GrantedNovember 26, 2002
Term endedMay 14, 2013
Patent numberCA 2136100 C
Classification (IPC)A61F2/38 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 14, 1993Patent grantedNov 26, 2002Term endedMay 14, 2013

Sources & verification

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