Tinted pit and fissure sealant
CA 1137675 A · Owner: Johnson & Johnson Dental Products Company · Inventors: Kemper, Russell N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition is disclosed that is useful for sealing pits and fissures in teeth to prevent the formation of decay therein. The composition contains at least one colorant selected from the group consisting of a plant extract from Annatto or Turmeric, or .beta.-Apo-8'-Carotenal.
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 December 14, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 1999.
- 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.