Expired Canadian patentCanada
Composite implant with metallic braid
CA 2086020 C · Owner: Chu, Helen S. · Inventors: Chu, Helen S.; Devanathan, Thirumalai N. C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bone implant includes two non-metallic layers and an inner layer composed of metallic wire. The metallic wire enhances the attachment of the various layers and makes the implant visible on a radiogram.
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 November 4, 1992 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 4, 1992
GrantedSeptember 23, 2003
Term endedNovember 4, 2012
Patent numberCA 2086020 C
Classification (IPC)A61F2/28 +2 more
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.