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Patent
D873316
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Priority
Oct 31 2013
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Filed
Nov 22 2017
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Issued
Jan 21 2020
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Expiry
Jan 21 2035
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Assg.orig
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Entity
unknown
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3
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14
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n/a
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The ornamental design for a non-rotating 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 view of the drill bit of FIG. 1;
FIG. 3 is a back 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 right side elevation view of the drill bit of FIG. 1; and,
FIG. 6 is a left side elevation view of the drill bit of FIG. 1.
The broken lines of FIGS. 1-6 illustrate portions of the drill bit which form no part of the claimed design.
Lyon, Leland H.
Patent |
Priority |
Assignee |
Title |
2262001, |
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2381415, |
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2786373, |
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2830795, |
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2887989, |
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4116289, |
Sep 23 1977 |
Shell Oil Company |
Rotary bit with ridges |
4324300, |
Jun 30 1980 |
HANEY, BELL C |
Rotary drill bit |
4446929, |
Jun 11 1979 |
Dresser Industries, Inc. |
Fluid operated rock drill hammer |
20040076483, |
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20090184564, |
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20090321143, |
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20100252330, |
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20110240373, |
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20140131116, |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a