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Expired Canadian patentCanada

Interbody spinal fusion implant with trailing end adapted to receive bone screws

CA 2431218 C · Owner: Michelson, Gary Karlin · Inventors: Michelson, Gary Karlin

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

A spinal fusion implant (100) for insertion between adjacent vertebral bodies has opposed upper and lower surfaces (110 112) adapted to contact each of the , adjacent vertebral bodies from within the disc space a leading end (10) for , insertion between the adjacent vertebral bodies and a trailing end (104) , opposite the leading end (102). The trailing end (104) has an exterior surface (122) and an outer perimeter with an upper edge (140) and a lower edge (142) adapted to be oriented toward adjacent vertebral bodies respectively, and a , plurality of bone screw receiving holes (126). At least one of the bone screw receiving holes (126) is adapted to only partially circumferentially …

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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 23, 2002 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2024.
  • 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 23, 2002
GrantedMarch 29, 2011
Term endedJanuary 23, 2022
Patent numberCA 2431218 C
Classification (IPC)A61B17/58 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 23, 2002Patent grantedMarch 29, 2011Term endedJan 23, 2022

Sources & verification

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