The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2021
Filed:
Mar. 22, 2017
Applicant:
Coltène/whaledent Ag, Altstätten, CH;
Inventor:
Werner Mannschedel, Langenau, DE;
Assignee:
COLTÈNE/WHALEDENT AG, Altstaetten, CH;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C 5/42 (2017.01); B23H 9/08 (2006.01); B24B 1/00 (2006.01); B23H 9/00 (2006.01); B24B 19/04 (2006.01);
U.S. Cl.
CPC ...
A61C 5/42 (2017.02); B23H 9/00 (2013.01); B23H 9/08 (2013.01); B24B 1/005 (2013.01); B24B 19/04 (2013.01); A61C 2201/007 (2013.01);
Abstract
The invention relates to a blank for an endodontic instrument, obtainable by machining at least one rod by means of wire erosion, preferably selected from the group consisting of electrical discharge machining, wire electrical discharge machining, electrical discharge grinding and electro-chemical machining, wherein an erosion pattern is applied to the at least one rod, wherein the blank has a homogenous hardness.