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:
Sep. 11, 2007
Filed:
Mar. 11, 2003
Applicants:
Juergen Wiker, Leinfelden-Echterdingen, DE;
Gregory A. Phillips, LaGrange, KY (US);
Inventors:
Juergen Wiker, Leinfelden-Echterdingen, DE;
Gregory A. Phillips, LaGrange, KY (US);
Assignee:
Credo Technology Corporation, Broadview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spade drill bit () comprises a shaft () having one end () configured to be engaged to a driving tool and a cutting head () attached at an opposite end of said shaft (). The cutting head () includes a center point () having threads () defined thereon, including continuous threads () adjacent the tip and discontinuous threads () thereafter toward the base.