Root canal posts
CA 1295153 C · Owner: Kobayashi, Takashi · Inventors: Kobayashi, Takashi; Yuda, Sadayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A root canal post for use in constructing a therapeutic foundation on the root tooth for treatment of a broken tooth, the post comprising a head a shank, and a bore axially produced through the head and shank, the bore including a filler releasably filled therein so that after the post is anchored in the tooth, a subsequent treatment for a possible secondary caries is applied through the bore which is made empty by removing the filler. - 8 -
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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 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.