Patent
   D372253
Priority
Jan 17 1995
Filed
Jan 17 1995
Issued
Jul 30 1996
Expiry
Jul 30 2010
Assg.orig
Entity
unknown
11
70
n/a
The ornamental design for a support arm and rotary cone for modular drill bit, as shown.

FIG. 1 is a perspective view of the support arm and rotary cone for modular drill bit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a second side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Bird, Jay S., Beaton, Michael S., Huffstutler, Alan D., Campos, Jr., Harry M.

Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 27 1994CAMPOS, HARRY M , JR Dresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0073100604 pdf
Dec 28 1994HUFFSTUTLER, ALAN D Dresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0073100604 pdf
Jan 17 1995Dresser Industries, Inc.(assignment on the face of the patent)
May 10 1995HUFFSTUTLER, ALAN DEEDresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0075480082 pdf
May 10 1995CAMPOS,HARRY MORALES,JR Dresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0075480082 pdf
May 10 1995BIRD,JAY STUARTDresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0075480082 pdf
May 10 1995BEATON,MICHAEL STEVEDresser Industries, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0075480082 pdf
Jan 13 2003DRESSER INDUSTRIES, INC NOW KNOWN AS DII INDUSTRIES, LLC Halliburton Energy Services, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0137270291 pdf
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