Resorbable implant biomaterial made of condensed calcium phosphate particles
CA 2252860 C · Owner: 1218122 Ontario Inc. · Inventors: Pilliar, Robert; Grynpas, Marc; Kandel, Rita
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resorbable biomaterial for implantation in humans and other animals comprises amorphous or crystalline condensed calcium phosphate of the general formula: Ca(PO3)2n where n is 3 or greater and the , molar ratio of Ca:P is between about 0.4 and 0.6. The condensed calcium phosphate powder can be formed as a sintered powder which is bound or consolidated to form at least part of an implantable anchor, with controlled size and amount of porosity. The condensed calcium phosphate part of anchor/implant preferably has a bone interfacing portion which is placed in juxtaposition with adjacent hard tissues when implanted in a patient, and which is characterized by interconnected pores …
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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 May 15, 1997 and granted March 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.