Patent
   D265205
Priority
Apr 24 1980
Filed
Apr 24 1980
Issued
Jun 29 1982
Expiry
Jun 29 1996
Assg.orig
Entity
unknown
16
5
n/a
The ornamental design for a drill bit, as shown and described.

FIG. 1 is a perspective view of a drill bit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view taken from the left of FIG. 1;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view taken from the right of FIG. 1;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof.

Munson, Beauford E.

Patent Priority Assignee Title
5180022, May 23 1991 DOVER BMCS ACQUISITION CORP Rotary mining tools
5303787, May 23 1991 DOVER BMCS ACQUISITION CORP Rotary mining tools
5547033, Dec 07 1994 Halliburton Energy Services, Inc Rotary cone drill bit and method for enhanced lifting of fluids and cuttings
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5606895, Aug 08 1994 Halliburton Energy Services, Inc Method for manufacture and rebuild a rotary drill bit
5624002, Aug 08 1994 Halliburton Energy Services, Inc Rotary drill bit
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D273680, Nov 18 1980 Fagersta AB Roller bit
D340248, May 23 1991 DOVER BMCS ACQUISITION CORP Roof drill bit for mining
D372253, Jan 17 1995 Halliburton Energy Services, Inc Support arm and rotary cone for modular drill bit
D384084, Jan 17 1995 Halliburton Energy Services, Inc Rotary cone drill bit
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D892868, Aug 17 2017 Downhole Products Limited Tubing shoe
D941373, Sep 16 2019 KYOCERA SGS PRECISION TOOLS EUROPE LTD Rougher tool
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Patent Priority Assignee Title
1663332,
1860587,
2147926,
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