Patent Yard Sign in
Expired Canadian patentCanada

Endodontic core assembly

CA 1237301 A · Owner: Lococo, Michael P. · Inventors: Lococo, Michael P.

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

Endodontic core and post are disclosed forming an integral unit of which the post adapted, to be anchored in the respective root canal is, provided with, preferably, four wings perforated to allow passage of cement or the like through same in order to enhance the strength of embedding of the post in the root canal. The radial wings of the post are disposed each in a recess which is reamed by utilizing a special guiding post which is also a part of the present invention. In order to further enhance the strength of the bond between the core and the post in the respective root canal, an extension beam, preferably of a cross-shaped cross-sectional configuration, is adhesively secured to the …

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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 22, 1983
GrantedMay 31, 1988
Term endedMay 31, 2005
Patent numberCA 1237301 A
Classification (IPC)A61C13/00 +1 more

Sources & verification

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