Light-polymerizable dental composition containing an inhibitor
CA 2425953 A1 · Owner: Dentsply International Inc. · Inventors: Klee, Joachim E.; Walz, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Light-polymerizable dental composition comprising (i) a polymerizable monomer component, (ii) a light-sensitive polymerization initiator (iii) an , inhibitor, (iv) optionally a filler and/or pigment and (v) optionally a , solvent, characterized in that the inhibitor is a substituted fullerene compound present in an amount suitable for improving light stability of the dental composition.
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 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.