Hook with screw for the treatment of deformities of the spine
CA 2106776 C · Owner: Synthes Usa, Llc · Inventors: Schlapfer, Johannes Fridolin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This hook serves to treat vertebral column deformities. It is comprised of a shaft portion (2) with a longitudinal axis (1) to which a longitudinal support (5) can be attached transversely to the longitudinal axis (1), as well as a hook shaft (3) with a convex posterior side (34) and a concave anterior side (35) bent away from the longitudinal axis (1) connecting to the shaft portion (2). It is provided with a penetrating drill hole (36) extending from the convex posterior side (34) to the concave anterior side (35), to accept a screw (4).
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 March 15, 1993 and granted December 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2015.
- 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.