Patent
   D872142
Priority
May 21 2015
Filed
Oct 18 2017
Issued
Jan 07 2020
Expiry
Jan 07 2035
Assg.orig
Entity
unknown
8
21
n/a
The ornamental design for a drill bit for a down-the-hole drill hammer, as shown and described.

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 Assignee Title
D894979, Mar 01 2019 Boart Longyear Company Drill bit
D894980, Mar 01 2019 Boart Longyear Company Drill bit
D894981, Mar 01 2019 Boart Longyear Company Drill bit
D915479, May 12 2017 Arbortech Industries Limited Rotary carving tool
D924949, Jan 11 2019 US Synthetic Corporation Cutting tool
D947910, Jan 11 2019 US Synthetic Corporation Drill bit
D973736, Apr 09 2020 Arbortech Industries Limited Rotary carving tool
D983241, Apr 09 2020 Arbortech Industries Limited Rotary carving tool
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 18 2017Center Rock Inc.(assignment on the face of the patent)
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