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.:

US 8317438 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 27, 2012

Filed:

Apr. 10, 2009
Applicant:

Peter Karl Mergenthaler, Markt Bibart, DE;

Inventor:

Peter Karl Mergenthaler, Markt Bibart, DE;

Assignee:

Kennametal Inc., Latrobe, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A twist drill having at least two cutting inserts at the tip each with its own J-shaped chip guiding flute and a method for the production thereof.


Find Patent Forward Citations

Loading…