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Publication numberUSD620510 S1
Publication typeGrant
Application numberUS 29/304,177
Publication dateJul 27, 2010
Filing dateFeb 26, 2008
Priority dateMar 23, 2006
Publication number29304177, 304177, US D620510 S1, US D620510S1, US-S1-D620510, USD620510 S1, USD620510S1
InventorsDavid R. Hall
Original AssigneeSchlumberger Technology Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Drill bit
US D620510 S1
Abstract  available in
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  1. The ornamental design for a drill bit, as shown and described.

FIG. 1 is a bottom perspective view of the drill bit.

FIG. 2 is a side view of the drill bit with an enlarged detail; and,

FIG. 3 is a perspective view of the drill bit.

The broken line showing of the drill bit is included for the purpose of illustrating portions of the drill bit and forms no part of the claimed invention.

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Referenced by
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US8020471 *Feb 27, 2009Sep 20, 2011Schlumberger Technology CorporationMethod for manufacturing a drill bit
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U.S. ClassificationD15/139, D15/131