Ion-releasing composite material
CA 2254649 A1 · Owner: Salz, Ulrich · Inventors: Salz, Ulrich; Fischer, Urs Karl; Rheinberger, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to ion-releasing composite materials on the basis of polymerizable monomers. The material is characterized in that it contains one or more non-acid non-ionic, hydrophilic, crosslinker monomers one or more non-acid, non-ionic, hydrophilic dilution monomers having a viscosity of ~ 1 Pas and at least one ion-releasing filler. The materials are suitable in particular for use as dental materials.
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 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2020.
- 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.