Spinal instruments, particularly for a rod
CA 2215485 C · Owner: Petreto, Eric · Inventors: Petreto, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Spinal instruments, particularly for an adjustable connecting rod including a bone anchor element (1) with an anchoring portion (2) separated from a projecting threaded head (3) engaging a nut (5) by an intermediate body (4) having a polygonal cross-section (19) and forming an abutment (7) in the upper portion thereof and an assembly (8) for receiving and locking a connecting head. Said receiving and locking assembly consists of a clamping element with two arms joined together at a connecting region and provided with facing apertures (17 18) through which the threaded head can be inserted as far as the abutment (7) a recess being defined between the arms of the clamp. Said assembly further …
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 5, 1996 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2018.
- 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.