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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
09/02/1997
Application #:
08544296
Filing Dt:
10/17/1995
Inventors:
JAMES E. COFFMAN, PAUL W. CRITES, PAUL B. CAMPBELL
Title:
PERCUSSION DRILL ASSEMBLY
Assignment: 1
Reel/Frame:
007724/0205Recorded: 10/17/1995Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
10/16/1995
Exec Dt:
10/16/1995
Exec Dt:
10/16/1995
Assignee:
BARON STEUBEN PLACE
CORNING, NEW YORK 14830
Correspondent:
JAMES W. WILLIAMS
RICHARDS, MEDLOCK & ANDREWS
4500 RENAISSANCE TOWER
1201 ELM STREET
DALLAS, TX 75270-2197
Assignment: 2
Reel/Frame:
011204/0748Recorded: 10/20/2000Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
08/31/2000
Assignee:
12001 NORTH HOUSTON ROSSLYN
HOUSTON, TEXAS 77086
Correspondent:
LATHAM & WATKINS
RICHARD S. MELLER
233 S. WACKER DRIVE
SUITE 5800
CHICAGO, IL 60606
Assignment: 3
Reel/Frame:
016651/0920Recorded: 10/19/2005Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
09/02/2005
Assignee:
6237 S. INDIANAPOLIS PLACE
TULSA, OKLAHOMA 74136
Correspondent:
BARBER & BARTZ- ATTN: ROBERT BEARER
525 S. MAIN
STE. 800
TULSA, OK 74103-4511

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