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:
Jan. 10, 1995
Filed:
Jan. 18, 1994
Applicant:
Inventor:
Walter Schimmer, Munich, DE;
Assignee:
Emhart Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408199 ; 408230 ;
Abstract
Drill bit of the twist drill type with turns which are held together by a drill center web and each issue in a radially extending cutting edge of which one extends to the bit axis and the other is shorter than it. This is characterized by the following features: