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Patent
D717351
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Priority
Jan 17 2014
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Filed
Jan 17 2014
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Issued
Nov 11 2014
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Expiry
Nov 11 2028
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Assg.orig
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Entity
unknown
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8
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11
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n/a
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The ornamental design for a pilot drill bit, as shown and described.
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FIG. 1 is a left side elevation view of the present design, pilot drill bit.
FIG. 2 is a rear end elevation view of the present design, pilot drill bit.
FIG. 3 is a rear left side perspective view of the present design, pilot drill bit; and,
FIG. 4 is a front right side perspective view of the present design, pilot drill bit.
The broken lines in the drawings depict unclaimed subject matter.
Burca, Dennis
Patent |
Priority |
Assignee |
Title |
2915925, |
|
|
|
5322139, |
Jul 28 1993 |
|
Loose crown underreamer apparatus |
5743345, |
Jul 30 1996 |
Ingersoll-Rand Company |
Drill bit for reverse drilling |
5975222, |
Jul 01 1996 |
|
Reverse circulation drilling system with bit locked underreamer arms |
7389833, |
Jun 10 2005 |
KEYSTONE AIR & DRILL SUPPLY CO |
Multi-sectional percussive drill bit assembly |
7419017, |
Jun 10 2005 |
KEYSTONE AIR & DRILL SUPPLY CO |
Multi-sectional percussive drill bit assembly |
20060027399, |
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20070095576, |
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20100243333, |
|
|
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D700922, |
Aug 26 2013 |
|
Overburden pilot bit |
D710174, |
Aug 15 2013 |
Black & Decker Inc. |
Sleeve for screwdriving bit |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Maintenance Fee Events |
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