Patent Yard Sign in
Expired Canadian patentCanada

Vibratory endodontic device

CA 1265686 C · Owner: Den-Tal-Ez, Inc. · Inventors: Nash, John E.

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

A vibratory endodontic device is described for mechanical preparation of dental radicular canals i.e. root canals, prior to their obturation. The device includes a housing, a vibratory drive means supported within the housing to minimize the transfer of vibration to the housing, an endodontic file connected to the drive means for vibratory movement and stop means operatively connected to the housing and substantially isolated from the mechanical vibrations created by the vibratory drive means. Additionally, fluid transport means are provided for maintaining a controllable or a continuous flow of irrigation fluid along the endodontic file. Various assemblies for retaining the endodontic …

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 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 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.
FiledOctober 5, 1983
GrantedFebruary 13, 1990
Term endedFebruary 13, 2007
Patent numberCA 1265686 C
Classification (IPC)A61C3/02

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedOct 5, 1983Patent grantedFeb 13, 1990Term endedFeb 13, 2007

Sources & verification

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