Endoprosthesis for the knee-joint
CA 2085815 C · Owner: Kotz, Rainer · Inventors: Windhager, Reinhard; Kotz, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Endoprosthesis for the knee joint and adjacent bone parts comprising a femoral and a tibial joint part a bone replacement, part to be attached to the femoral or respectively tibial joint, part which replacement part comprises a pair of telescopically cooperating rod members which are adjusted with respect to each other by a threaded spindle and a spindle nut and comprising a, pinion on the spindle to be actuated by a rotating means whereby, an indexing mechanism is provided comprising an indexing member which is actuated by the tibial or femoral joint part in an extreme bending position of the joint.
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 December 18, 1992 and granted November 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2014.
- 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.