Oral compositions
CA 2226160 C · Owner: Hughes, Iain Allan · Inventors: Edwards, Mark Ieuan; Hughes, Iain Allan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oral composition in the form of a toothpaste powder, liquid dentifrice, mouthwash, denture cleanser chewing gum or candy comprising one or more oral composition components selected from abrasives binders, humectants, surfactants, fluoride ion sources anti-calculus agents and sweeteners and additionally comprising: i) an aminoalkylsilicone; and ii) a silicone surfactant having general formula (I) wherein X is selected from hydrogen alkyl, alkoxy and acyl groups having from about 1 to about 16 carbon atoms Y , is CH3, q is 0, n is from about 1 to about 100 m is from about 1 to about 40, the molecular weight of the residue (C2H4O-)x(C3H6O-)yX is from about 50 to about 2000, and x and y …
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 June 25, 1996 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2018.
- 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.