Moldable dental material for forming or repairing a dental restoration
CA 2115963 C · Owner: Shoher, Itzhak · Inventors: Shoher, Itzhak; Whiteman, Aharon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A moldable dental composition for use in forming or repairing dental restorations composed of a mixture of high- and low- fusing temperature metal particles finely divided carbonaceous particles, preferably of activated carbon and a volatile binder in a concentration such that upon heat treatment at a temperature below the melting temperature of the high-fusing temperature metal particles but sufficient to melt the low-fusing temperature metal particles and binder a porous metal structure is formed having a capillary network of voids and a high void volume. The voids are filled using a filler material of metal or ceramic.
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 February 18, 1994 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2016.
- 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.