Method for cleaning contact lenses
CA 1339705 C · Owner: Ratcliff, Perry A. · Inventors: Ratcliff, Perry A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of stabilized chlorine dioxide or chlorine dioxide in aqueous solution as a composition to reduce or prevent plaque formation and treatment of oral diseases ecologically plaque dependent, such as gingivitis and periodontitis is, disclosed. Preferred concentrations are in the range of 0.005% to 0.2% and the chlorine dioxide may be in the form of a rinse a, wash, a soak or a dentifrice.
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 March 10, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2015.
- 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.