Unilateral extensible external clamp for treating bone diseases
CA 2027856 C · Owner: Pfeil, Joachim · Inventors: Veith, Wolfgang; Pfeil, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a unilateral, extensible external tensioning device for treating bone disease and for the purpose of axially and externally affixing bones or, parts of fractured bones. At least one piston each 3 and 4 is mounted on both sides in, telescoping manner to a central part 1 various link means being rotatably , attachable to the outer ends of these pistons 3 and 4.
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 3, 1990 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2012.
- 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.