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Expired Canadian patentCanada

Modular joint prosthesis

CA 1330688 C · Owner: Boehringer Mannheim Corporation · Inventors: Van Zile, Richard R.

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 tool for separating the two components of a modular joint prosthesis intended for implantation in a body. The prothesis includes a component adapted to be fixed to a long bone having an intramedullary canal and further includes an elongated male stem having a uniformly tapered outer surface. In order to accommodate the particular size of long bone to which the component is to be fixed, a properly sized female stem is attached to the male stem before the component is fixed to the long bone. The female stem is adapted to be received in the intramedullary canal for fixation thereto, and has a uniformly tapered inner surface the, angle of the taper being substantially similar to the angle of …

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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 July 19, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 19, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 1989
GrantedJuly 19, 1994
Term endedJuly 19, 2011
Patent numberCA 1330688 C
Classification (IPC)A61F2/30 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 28, 1989Patent grantedJuly 19, 1994Term endedJuly 19, 2011

Sources & verification

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