Acetabulum reamer
CA 2025237 A1 · Owner: Bristol-Myers Squibb Company · Inventors: Schelhas, Klaus-Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
12, The present invention relates to an acetabulum cutter that serves in particular to shape the acetabulum of the human pelvic bone preparatory to the implantation of an artificial hip joint socket. The proposed acetabulum cutter comprises a cutting head attached to a shaft and one or more cutting ridges which being, fitted with cutting elements, wind helically around the shaft axis. The outer face of the cutting ridge is bounded by a section of a spherical surface, whose axis of rotation aligns with the shaft axis.
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 13, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 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.