Acetabular cup for use in a total hip prosthesis
CA 2048523 A1 · Owner: Howmedica International Inc. · Inventors: Lawes, Peter; Ling, Robin Sidney Mackwood
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acetabular cup for use in a total hip prosthesis which includes an outer portion for location in a patients' pelvis and to be held in place in a cement mantle and means for allowing said portion to move further into said cement mantle and re-engage itself to accommodate creep or movement thereof.
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 August 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2013.
- 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.