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Patent
D824436
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Priority
Sep 12 2016
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Filed
Sep 12 2016
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Issued
Jul 31 2018
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Expiry
Jul 31 2033
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Assg.orig
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Entity
unknown
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3
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5
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n/a
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We claim the ornamental design for a spiral tapered cutter bit for drill head, as shown and described.
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FIG. 1 is a bottom and front elevational view of the spiral tapered cutter bit for drill head, shown in place on a drill head;
FIG. 2 is a side elevational view of the spiral tapered cutter bit for drill head;
FIG. 3 is a bottom plan view of the spiral tapered cutter bit for drill head of FIG. 2;
FIG. 4 is a top plan view of the spiral tapered cutter bit for drill head of FIG. 2;
FIG. 5 is a side elevational view of the spiral tapered cutter bit for drill head of FIG. 2;
FIG. 6 is a side elevational view of the spiral tapered cutter bit for drill head of FIG. 2;
FIG. 7 is a side elevational view of the spiral tapered cutter bit for drill head of FIG. 2;
FIG. 8 is a bottom and side perspective view of the spiral tapered cutter bit for drill head of FIG. 2; and,
FIG. 9 is a top and side perspective view of the spiral tapered cutter bit for drill head of FIG. 2.
The broken lines in FIGS. 1, 2, 4, 5, 6, 7, 8 and 9 of the drawings show unclaimed environment only and form no part of the claimed design.
Porturas, Luis Miguel, Watson, Richard W.
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