Patent
   D656974
Priority
Jan 28 2009
Filed
Jul 07 2011
Issued
Apr 03 2012
Expiry
Apr 03 2026
Assg.orig
Entity
unknown
6
57
n/a
The ornamental design for a drill bit, as shown and described.

FIG. 1 is an elevation view of a right side of a drill bit in accordance with the new design;

FIG. 2 is an elevation view of a left side of the drill bit;

FIG. 3 is a top plan view of the drill bit;

FIG. 4 is a top perspective view of the drill bit; and,

FIG. 5 is a bottom perspective view of the drill bit.

The broken lines in FIGS. 1-5, illustrate portions of the drill bit which form no part of the claimed design.

Lyon, Leland H., Lay, Warren Thomas

Patent Priority Assignee Title
D681484, Mar 09 2012 ITEL LABORATORIES, INC Siding gauge
D681485, Mar 09 2012 ITEL LABORATORIES, INC Siding gauge
D875147, May 10 2018 SEED TECHNOLOGIES CORP., LTD. Drill bit
D915591, Jan 25 2019 Beijing SMTP Technology Co., Ltd.; BEIJING SMTP TECHNOLOGY CO , LTD Ultrasonic cutter head for medical purpose
ER5833,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 17 2011LYON, LELAND H CENTER ROCK, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0265600447 pdf
Jun 17 2011LAY, WARREN THOMASCENTER ROCK, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0265600447 pdf
Jul 07 2011Center Rock Inc.(assignment on the face of the patent)
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