Fastening pin
CA 2112755 C · Owner: Durr, Walter · Inventors: Durr, Walter; Kirsch, Axel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastening pin for securing a covering membrane to a defective bone area filled with reconstructive bone material with surrounding endogenous bone. The head of the pin has a larger diameter so that it can be acted upon by a pressure and/or striking tool and has a pin shaft adjacent thereto of a smaller diameter which has an essentially cylindrical holder and, adjacent thereto a, portion essentially tapering to a point. The transitional area between the holder and the pointed portion has an annular shoulder of a larger diameter which extends towards the point of the pin with a conical surface diagonally into the surface of the point and adjoins the holder in a barb-like manner with an …
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 4, 1994 and granted February 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2016.
- 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.