Global Patent Index - EP 1001713 A1

EP 1001713 A1 2000-05-24 - ROOT-CANAL INSTRUMENT

Title (en)

ROOT-CANAL INSTRUMENT

Title (de)

ZAHNWURZELKANALINSTRUMENT

Title (fr)

INSTRUMENT POUR CANAL RADICULAIRE DENTAIRE

Publication

EP 1001713 A1 (DE)

Application

EP 99927816 A

Priority

  • DE 19825299 A
  • EP 9903773 W

Abstract (en)

[origin: DE19825299C1] Dental root canal instruments comprise a top part and an associated instrument part, in which the instrument part is coated over at least part of its length with a wear-resistant coating. An Independent claim is included for the materials used for the wear-resistant coating which are selected from carbon and carbon compounds; Ti, Ti nitride and Ti compounds; Si and Si compounds; silicones and silicone compounds; Ti-Al nitride; amorphous boron carbide; and Cr and its compounds. The tool base is made e.g. of stainless steel, Ni-Ti alloy or other special alloy.

IPC 1-7 (main, further and additional classification)

A61C 5/02

IPC 8 full level (invention and additional information)

A61C 5/02 (2006.01)

CPC (invention and additional information)

A61C 5/42 (2017.02); A61C 2201/002 (2013.01)

Designated contracting state (EPC)

CH DE FR LI SE

EPO simple patent family

DE 19825299 C1 19991125; EP 1001713 A1 20000524; JP 2002517274 A 20020618; US 6234796 B1 20010522; WO 9963902 A1 19991216

INPADOC legal status


2004-12-22 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040617

2004-03-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040206

2000-05-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000204

2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE FR LI SE