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Expired Canadian patentCanada

Sacral fixation device

CA 1310236 C · Owner: Edwards, Charles C. · Inventors: Edwards, Charles C.

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

This invention provides a sacral fixation screw comprising a housing having an aperture in the top surface thereof for engaging a driving device and an opening extending laterally through the housing, the opening having top and bottom walls which may be double beveled to provide a smaller opening at the center of the housing and a threaded shank extending perpendicularly from the side of the housing opposite to the surface having the aperture therein. The present invention further provides a sacral fixation device comprising the abovementioned screw and a hook. A method for applying a spinal rod to a patient's sacral is also disclosed.

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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

  • Granted November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 7, 1985
GrantedNovember 17, 1992
Term endedNovember 17, 2009
Patent numberCA 1310236 C
Classification (IPC)A61B17/58 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedFeb 7, 1985Patent grantedNov 17, 1992Term endedNov 17, 2009

Sources & verification

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