Drill bit

- Center Rock Inc.
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Description

FIG. 1 is an elevation view of a right side of a drill bit in accordance with the new design;

FIG. 2 is an elevation view of a left side of the drill bit;

FIG. 3 is a top plan view of the drill bit;

FIG. 4 is a top perspective view of the drill bit; and,

FIG. 5 is a bottom perspective view of the drill bit.

The broken lines in FIGS. 1-5, illustrate portions of the drill bit which form no part of the claimed design.

Claims

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

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Patent History
Patent number: D656974
Type: Grant
Filed: Jul 7, 2011
Date of Patent: Apr 3, 2012
Assignee: Center Rock Inc. (Berlin, PA)
Inventors: Leland H. Lyon (Roanoke, VA), Warren Thomas Lay (Catawba, VA)
Primary Examiner: Patricia Palasik
Attorney: Kim Krizman LLC
Application Number: 29/396,799
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)