Hydrogen peroxide-releasing tooth powder
CA 1309355 C · Owner: Marder, Herman L. · Inventors: Marder, Herman L.; Sorenson, Wayne; Winston, Anthony E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stable, palatable and safe hydrogen peroxide releasing tooth powder composition containing sodium bicarbonate and sodium percarbonate in combination with flavoring agents, sweeteners, fluoridating agents additional, abrasives, surfactants and/or additional adjuvants.
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
- Granted October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
- 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.