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Expired Canadian patentCanada

Prosthetic joint for total knee replacement

CA 1073151 A · Owner: Bristol-Myers Squibb Company · Inventors: Arkangel, Robert

CIPO record

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

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Abstract From the Canadian patent

Abstract of the Disclosure, The embodiment of the invention disclosed herein is directed to a joint prosthesis for total knee replacement. The joint prosthesis includes a first prosthetic member including a stem member adapted for insertion into a first skeleton element. A second prosthetic member includes a stem for insertion into a second skeleton element which is disposed adjacent to first skeleton element. The joint prosthesis is provided with a removable plateau member which forms a slide or rubbing surface for the prosthetic members. The removable plateau can be replaced when worn. Retaining screws are provided on opposite sides of the first prosthetic member to retain the ball within …

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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 March 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 11, 1980
Term endedMarch 11, 1997
Patent numberCA 1073151 A
Classification (IPC)—

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 11, 1980Term endedMarch 11, 1997

Sources & verification

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