Screw for device for coaptation of bone fragments or parts using compression effect
CA 2581537 C · Owner: Biotech International (Sarl) · Inventors: Houvet, Patrick; Tchurukdichian, Alain; Colombier, Jean-Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an osteosynthesis screw for a device for coaptation of bone fragments or parts using compression effect comprising a distal portion (2) provided with a cylindrical thread a proximal portion or head (3) provided with a conical tapped thread and an intermediate smooth section (4) arranged between said distal (2) and proximal (3) portions. The invention is characterized in that said intermediate smooth section (4) consists of a series of mutually tangent circular smooth surfaces (S1 S2, S3).
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 October 6, 2005 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.