U.S. patent number D529,937 [Application Number D/222,641] was granted by the patent office on 2006-10-10 for heavy duty roof drill bit.
This patent grant is currently assigned to The William J. Brady Loving Trust. Invention is credited to William J. Brady.
United States Patent |
D529,937 |
Brady |
October 10, 2006 |
Heavy duty roof drill bit
Claims
CLAIM The ornamental design for a heavy duty roof drill bit, as
shown and described.
Inventors: |
Brady; William J. (Creve Coeur,
MO) |
Assignee: |
The William J. Brady Loving
Trust (Creve Coeur, MO)
|
Appl.
No.: |
D/222,641 |
Filed: |
February 1, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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29204230 |
Apr 27, 2004 |
D516104 |
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Current U.S.
Class: |
D15/139 |
Current International
Class: |
1509 |
Field of
Search: |
;D15/139
;175/377,388,339,393,420.1,429,430 ;299/79.1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Davis; Antoine D.
Assistant Examiner: Palasik; Patricia
Description
FIG. 1 is a side elevational view of a heavy duty roof drill bit
embodying the invention, the opposite side being a mirror
image;
FIG. 2 is a top plan view of the heavy duty roof drill bit of FIG.
1;
FIG. 3 is a bottom view thereof;
FIG. 4 is another side elevational view of the roof drill bit, as
rotated 90.degree. from the FIG. 1, and the opposite side being a
mirror image; and
FIG. 5 is a perspective view of the roof drill bit.
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