Dense/porous structures for use as bone substitutes
CA 2447683 A1 · Owner: Ko, Ying · Inventors: Heckendorf, Bradley R.; Ko, Ying; Cassidy, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination dense/porous structure includes a porous element having an outer surface defining a shape having a bulk volume the element includes a , continuous framework having struts defining a plurality of interconnecting interstices throughout the bulk volume. The porous element has interconnecting interstices extending throughout the volume and opening through the surface. The combination dens/porous structure also includes a dense element formed from a material and having a sintered density of at least 95% contacting at , least a portion of the porous element; and an interconnection zone formed by the inter-penetration of the material forming the dense element into the porous …
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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 April 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2024.
- 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.