Expired Canadian patentCanada
Coated dental crowns
CA 1267006 C · Owner: Corbett, Jack A. · Inventors: Corbett, Jack A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coated metallic temporary dental crown which is coated with a thin layer tooth-colored polymer which resembles the normal tooth. The coated temporary dental, crowns blend with the teeth to give a more pleasing appearance in the mouth.
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 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 1986
GrantedMarch 27, 1990
Term endedMarch 27, 2007
Patent numberCA 1267006 C
Classification (IPC)A61C5/70 +1 more
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.