Hard tile drill bit

- C4 Carbides Limited
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Description

FIG. 1 is a perspective view of a hard tile drill bit according to the present invention;

FIG. 2 is a side view of the hard tile drill bit in FIG. 1;

FIG. 3 is the side view opposite the side shown in FIG. 2 of the hard tile drill bit;

FIG. 4 is an end view;

FIG. 5 is an end view;

FIG. 6 is another side view; and,

FIG. 7 is yet another side view.

Claims

The ornamental design for a hard tile drill bit, as shown and described.

Referenced Cited
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Patent History
Patent number: D570663
Type: Grant
Filed: Jun 13, 2006
Date of Patent: Jun 10, 2008
Assignee: C4 Carbides Limited (Cambridge)
Inventor: Paul Edward Duggan (Cambridge)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Karen Acker
Attorney: Nixon & Vanderhye P.C.
Application Number: 29/261,346
Classifications
Current U.S. Class: D8/70