Calcium fluoride phosphate complexes
CA 2727634 C · Owner: The University Of Melbourne · Inventors: Reynolds, Eric C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to novel complexes in which amorphous calcium phosphates are stabilised by phosphopeptides. The phosphopeptides contain the Ser(P) cluster sequence motif Ser(P)-Ser(P)-Ser(P)-Glu-Glu and can stabilise their own weight in amorphous calcium phosphate (ACP) Ca3(PO4)1.87(HPO4)0.2xH2O and amorphous calcium fluoride phosphate (ACFP) Ca8(P04)5 F x H2O. The amorphous phases stabilised by the phosphopeptides are an excellent delivery vehicle to co-localise Ca F, and phosphate at the tooth surface in a slow-release amorphous form producing superior anticaries efficacy. These amorphous phases stabilised by the phosphopeptides also have utility as dietary supplements …
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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 March 13, 1998 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 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.