Surgical prosthetic device or implant having pure metal porous coating
CA 1073152 A · Owner: Ontario Research Foundation · Inventors: Pilliar, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical prosthetic device or implant is disclosed consisting of a coherent metal substrate and a pure metal porous coating. The pure metal porous coating is formed by thermal decomposition of a coating of thermallydecomposable metal compound particles and sintering of the metal particles so formed. The surface of the device or implant is irregular but the porosity is substantially uniformly distributed throughout the coating. The coating is strongly adherent to the substrate and supports the ingrowth of bone tissue for fixation of the device or implant in the body. Such coating also supports the ingrowth of fibrous tissue for the attachment of tendons and ligaments to the device.
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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
- Granted March 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 1997.
- 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.