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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
Issue Dt:
08/21/1984
Application #:
06445053
Filing Dt:
11/29/1982
Inventors:
LLOYD L. GARNER, SAMUEL R. WESTFALL, DWIGHT A. RIFE
Title:
ROTARY DRILL BIT MULTIPLE SEAL ASSEMBLY
Assignment: 1
Reel/Frame:
004073/0851Recorded: 11/29/1982Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
11/03/1982
Exec Dt:
11/03/1982
Exec Dt:
11/03/1982
Assignee:
FORT WORTH, TEXAS
Correspondent:
L. DAN TUCKER
HUBBARD, THURMAN, TURNER & TUCKER
1200 NORTH DALLAS BANK TOWER
LBJ FREEWAY AT PRESTON RD.
DALLAS, TX 75230
Assignment: 2
Reel/Frame:
020571/0601Recorded: 02/28/2008Pages: 10
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/20/2007
Assignee:
120 LONG RIDGE RD
STAMFORD, CONNECTICUT 06927
Correspondent:
KATHLEEN E. CAULFIELD
2020 K ST. NW
WASHINGTON, DC 20006
Assignment: 3
Reel/Frame:
025822/0903Recorded: 02/16/2011Pages: 8
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
03/09/2010
Assignee:
7601 WILL ROGERS BOULEVARD
FORT WORTH, TEXAS 76140
Correspondent:
ROBERT C. SHADDOX
WINSTEAD PC
P.O. BOX 50784
DALLAS, TX 75201
Assignment: 4
Reel/Frame:
026430/0658Recorded: 06/13/2011Pages: 9
Conveyance:
RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
06/08/2011
Assignees:
420 THROCKMORTON STREET
SUITE 1110
FORT WORTH, TEXAS 76102
7010-45 STREET
LEDUC, ALBERTA, CANADA T9E 7E7
Correspondent:
SOLYN J. LEE
JONES DAY
222 EAST 41 STREET
NEW YORK, NY 10017

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