Artificial spinal disc
CA 2448704 C · Owner: Lozier, Antony · Inventors: Lozier, Antony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spinal disc prosthesis used to replace a natural human spinal disc that has been damaged by trauma or disease and a method of using the same. The spinal disc of the present invention includes in one form thereof a flexible fluid filled nucleus a flexible braided fiber annulus, and a pair of woven metallic end-plates comprising micro-fixation means for initial fixation to adjacent bone and a bone in-growth surface wherein the spinal disc comprises a generally anatomic structure and shape.
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 November 6, 2003 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2025.
- 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.