Cementable hip prosthesis
CA 2017973 C · Owner: Bristol-Myers Squibb Company · Inventors: Schelhas, Klaus-Dieter; Skripitz, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Presented is a cementable thigh section of an acetabular prosthesis that has a shaft tapering toward its lower end and on whose upper, end is formed a flange-like support collar. Disposed in removable fashion below the support collar is an elastic spacer ring that at least partially covers the support collar. Worked in from the upper end of the thigh section is a main boring that preferably branches out into branch borings, that comes out from the thigh section in the upper shaft portion, and serves for bringing the bone cement into the intermediate space between bone wall and thigh section after the thigh section is emplaced in the bone cavity.
Read the whole patent
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 May 31, 1990 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.