Dual component antiplaque and tooth whitening composition
CA 2346353 A1 · Owner: Drago, Vincent O. · Inventors: Drago, Vincent O.; Bentley, Marcus; Afflitto, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual component tooth whitening composition is disclosed which composition , contains a peroxide whitening and a second ingredient incompatible with the peroxide compound such as a nonionic antibacterial agent the second , ingredient and the peroxide compound each being incorporated in separate dentrifice components which are physically separated until dispensed for use the components retaining their original physical state when in contact the , first component being a composition containing a peroxide whitening compound in a vehicle thickened with a combination of a particulated water insoluble inorganic compound such as for example a inorganic compound such as fumed silica or …
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 October 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2021.
- 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.