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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
Issue Dt:
09/20/1994
Application #:
08107092
Filing Dt:
08/16/1993
Inventors:
BORISLAV J. TCHAKAROV, LEON EARL
Title:
SELF-ADJUSTING CENTRALIZER
Assignment: 1
Reel/Frame:
007097/0434Recorded: 08/11/1994Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
09/09/1993
Exec Dt:
09/09/1993
Assignee:
311 WALL STREET
LAFAYETTE,, LOUISIANA 70506
Correspondent:
JOSEPH L. LEMOINE, JR.
P.O. BOX 3507
102 VERSAILLES BLVD.
SUITE 600
LAFAYETTE, LA 70502
Assignment: 2
Reel/Frame:
008829/0698Recorded: 12/02/1997Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
10/30/1997
Assignee:
2000, 530 EIGHTH AVE., SW
CALGARY, ALBERTA, CANADA
Correspondent:
FELSMAN, BRADLEY, GUNTER & DILLON, LLP
JAMES E. BRADLEY
3600 ESSEX, SUITE 1120
HOUSTON, TEXAS 77027
Assignment: 3
Reel/Frame:
017230/0980Recorded: 02/07/2006Pages: 3
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/31/2001
Assignee:
4200, 150 - 6 AVENUE SW
CALGARY ALBERTA, CANADA T2P 3Y7
Correspondent:
PATRICK H. MCCOLLUM
SUITE 1700
363 N. SAM HOUSTON PARKWAY EAST
HOUSTON, TEXAS 77060
Assignment: 4
Reel/Frame:
017275/0188Recorded: 07/01/2005Pages: 3
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/31/2001
Assignee:
4200, 150 - 6 AVENUE SW
CALGARY, ALBERTA, CANADA T2P 3Y7
Correspondent:
PATRICK H. MCCOLLUM
SUITE 1700
363 N. SAM HOUSTON PARKWAY EAST
HOUSTON, TX 77060
Assignment: 5
Reel/Frame:
016345/0078Recorded: 08/03/2005Pages: 5
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
04/04/2005
Assignee:
4200, 150-6TH AVE. SW
CALGARY, CANADA T2P 3Y7
Correspondent:
PATRICK H. MCCOLLUM
363 N. SAM HOUSTON PARKWAY E.
SUITE 1700
HOUSTON, TX 77060
Assignment: 6
Reel/Frame:
017507/0031Recorded: 04/21/2006Pages: 19
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
03/31/2006
Assignee:
1917 A.-84 AVE.
EDMONTON, CANADA T6P1K1
Correspondent:
CRYSTAL TAYLOR
515 POST OAK BLVD.
SUITE 600
HOUSTON, TX 77027
Assignment: 7
Reel/Frame:
017527/0191Recorded: 04/26/2006Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
04/21/2006
Assignee:
2900 MANULIFE PLACE
10680-101 STREET
EDMONTON, CANADA T533V5
Correspondent:
CRYSTAL N. TAYLOR
515 POST OAK BLVD.
SUITE 600
HOUSTON, TX 77027

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