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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
08/09/2005
Application #:
10652669
Filing Dt:
08/30/2003
Publication #:
Pub Dt:
03/03/2005
Inventors:
Donald G. Chamberlain, Jerald L. Harmon, William T. Bell
Title:
SEISMIC DEFENSE SYSTEM
Assignment: 1
Reel/Frame:
014459/0203Recorded: 08/30/2003Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
08/05/2003
Exec Dt:
08/05/2003
Exec Dt:
08/05/2003
Assignee:
440 SECOND AVENUE, S.W.
ERNST & YOUNG TOWER, SUITE 500
CALGARY, ALBERTA, CANADA T2P 5E9
Correspondent:
W. ALLEN MARCONTELL
P.O. BOX 800149
HOUSTON, TX 77280-0149
Assignment: 2
Reel/Frame:
023639/0820Recorded: 12/14/2009Pages: 4
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
07/18/2006
Assignee:
2105 CITY WEST BOULEVARD
SUITE 400
HOUSTON, TEXAS 77042-2839
Correspondent:
ROBERT M. TUTTLE / DORSEY & WHITNEY LLP
370 SEVENTEENTH STREET
REPUBLIC PLAZA BUILDING, SUITE 4700
DENVER, CO 80202-5647
Assignment: 3
Reel/Frame:
023639/0827Recorded: 12/14/2009Pages: 15
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/14/2009
Assignees:
1315 MEADOWLARK LANE
SUGARLAND, TEXAS 77478
25348 FM 1375 EAST
HUNTSVILLE, TEXAS 77340
Correspondent:
ROBERT M. TUTTLE / DORSEY & WHITNEY LLP
370 SEVENTEENTH STREET
REPUBLIC PLAZA BUILDING, SUITE 4700
DENVER, CO 80202-5647

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