Dental restorative materials
CA 2447751 C · Owner: Tyas, Martin John · Inventors: Tyas, Martin John; Reynolds, Eric Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition for dental restoration including a dental restorative material and an effective, amount for dental remineralisation of a casein phosphopeptide(CPP)-amorphous calcium, phosphate (ACP) complex or casein phosphopeptide(CPP)-amorphous calcium fluoride, phosphate (ACFP) complex. Also disclosed is a kit of parts comprising a glass ionomer dental, cement and (b) a CPP-ACP complex and/or a CPP-ACFP complex together with , instructions for, their use for the preparation of the above 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 May 21, 2002 and granted April 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 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.