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Expired Canadian patentCanada

Intramedullary nail

CA 2571672 C · Owner: Synthes (U.S.A.) · Inventors: Ulrich, Dieter; Frigg, Robert

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Disclosed is an intramedullary nail (1) that is made of a metal or a metal alloy and comprises a , longitudinal axis (4) a connecting part (2) whose cross section has an orthogonal profile F in , relation to the longitudinal axis (4) and a shaft part (3) which is to be , inserted into the medulla and whose cross section has an orthogonal profile f < F in relation to the longitudinal axis. The , metal or the metal alloy of the shaft part (3) is provided with greater mechanical stiffness than , the metal or the metal alloy of the connecting part (2).

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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 24, 2004 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 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 24, 2004
GrantedAugust 28, 2012
Term endedJune 24, 2024
Patent numberCA 2571672 C
Classification (IPC)A61B17/72

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 24, 2004Patent grantedAug 28, 2012Term endedJune 24, 2024

Sources & verification

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