Fastening nail
CA 2242403 A1 · Owner: Kirsch, Axel · Inventors: Hutmacher, Dietmar; Kirsch, Axel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a fastening nail made of bioresorbable plastic material for securing a cover membrane to body bone surrounding a bone defect filled with bone substitute material. The nail has a head designed to enable it to be acted on by a pressure and/or impact tool and joined to the head, a shaft , with a smaller diameter. The shaft has an essentially cylindrical gripping section and, joined to it, a tip section with a conical surface tapering towards the point. The nail is characterized in that the plastic material is at least partly non-crystalline (amorphous) and has a glass transition temperature in the range of body temperature the direction of the preferred , …
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 January 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 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.