Spine construct with band clamp
CA 2203717 C · Owner: Benzel, Edward C. · Inventors: Smith, Aaron C.; Yuan, Hansen A.; Wefers, Michael H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for retaining first and second vertebrae of a spinal column in a desired spatial relationship comprises first and second longitudinal members positionable along the spinal column. A first member connects the first and second longitudinal members to the first vertebra and second member connects the first and second longitudinal members to the second vertebra. A connector for interconnecting the first and second longitudinal members extends between the first and second longitudinal members and transverse to the first and second longitudinal members. The connector includes a band defining first and second openings through which the first and second longitudinal members are …
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 April 25, 1997 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2019.
- 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.