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Patent
D872142
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Priority
May 21 2015
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Filed
Oct 18 2017
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Issued
Jan 07 2020
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Expiry
Jan 07 2035
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Assg.orig
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Entity
unknown
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8
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21
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n/a
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The ornamental design for a drill bit for a down-the-hole drill hammer, as shown and described.
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FIG. 1 is a perspective view of a drill bit in accordance with the new design;
FIG. 2 is a bottom plan view of the drill bit of FIG. 1;
FIG. 3 is a right side elevation view of the drill bit of FIG. 1;
FIG. 4 is a front side elevation view of the drill bit of FIG. 1;
FIG. 5 is a left side elevation view of the drill bit of FIG. 1; and,
FIG. 6 is a rear side elevation view of the drill bit of FIG. 1.
The broken lines in FIGS. 1-6 illustrate portions of the drill bit which form no part of the claimed design.
Lyon, Leland H.
Patent |
Priority |
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May 29 2015 |
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Rock drill bit |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Oct 18 2017 | | Center Rock Inc. | (assignment on the face of the patent) | | / |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a