Patent Yard Sign in
Expired Canadian patentCanada

Medicated dental floss

CA 2239400 C · Owner: Marcon, Robert V. · Inventors: Marcon, Robert V.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

26, The present invention relates to a medicated dental floss comprising a dental floss and at least one dental desensitizing agent. Depending upon the structure, formulation and final, effects desired a binder may also be used to attach adhere or, otherwise incorporate a dental desensitizing agent onto or into the dental floss. In order to provide various other qualities one or more other ingredients, compounds or substances such as fluorides, peroxide based compounds, abrading agents pigmenting, agents, sweeteners, and flavouring agents may also be incorporated into or utilized by the medicated dental floss disclosed herein. Regular use of such a medicated dental floss will significantly …

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 July 9, 1998 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 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.
FiledJuly 9, 1998
GrantedSeptember 9, 2003
Term endedJuly 9, 2018
Patent numberCA 2239400 C
Classification (IPC)A61C15/04

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 9, 1998Patent grantedSep 9, 2003Term endedJuly 9, 2018

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.