Patent Assignment Abstract of Title
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Total Assignments:
8
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Patent #:
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Issue Dt:
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11/08/1994
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Application #:
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08178030
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Filing Dt:
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01/06/1994
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Inventor:
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KARL K. LA FLEUR
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Title:
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CEMENTING PLUG
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1810 BANKS DRIVE |
| WEATHERFORD, TEXAS 76087 |
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| RANDALL C. BROWN |
| HAYNES AND BOONE, LLP |
| 901 MAIN STREET, SUITE 3100 |
| DALLAS, TX 75202 |
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Assignment:
2
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| 888-3RD STREET SW |
| SUITE 1100 BANKERS HALL WEST |
| CALGARY, ALBERTA, CANADA T2P 5C5 |
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| PHILLINA LAI |
| 1001 FANNIN STREET |
| 2500 FIRST CITY TOWER |
| HOUSTON, TX 77002-6760 |
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Assignment:
3
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| 161 BAY STREET |
| 8TH FLOOR, BCE PLACE |
| TORONTO, ONTARIO, CANADA M5J 2S8 |
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| PHILLINA LAI |
| 1001 FANNIN STREET |
| 2500 FIRST CITY TOWER |
| HOUSTON, TX 77002-6760 |
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Assignment:
4
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RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
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| 7720 17TH STREET |
| EDMONTON, ALBERTA, CANADA T6P 1S7 |
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| SHERIDAN ROSS P.C. |
| 1560 BROADWAY |
| SUITE 1200 |
| DENVER, CO 80202 |
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Assignment:
5
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MERGER (SEE DOCUMENT FOR DETAILS).
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| 10613 W. SAM HOUSTON PKWY. N., SUITE 600 |
| HOUSTON, TEXAS 77064 |
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| DAVID C. LEE |
| 2001 K STREET, N.W. |
| ROBERT S. STRAUSS TOWER |
| WASHINGTON, DC 20006 |
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Assignment:
6
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SUPPLEMENT NO. 1 TO AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT
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| 2100 ROSS AVE. |
| SUITE 1850 |
| DALLAS, TEXAS 75201 |
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| HOLLAND & KNIGHT LLP |
| 10 ST. JAMES AVE. |
| 11TH FLOOR |
| BOSTON, MA 02116 |
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Assignment:
7
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SECOND AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT
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| 500 FIRST AVENUE |
| PITTSBURG, PENNSYLVANIA 15219 |
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| HOLLAND & KNIGHT LLP |
| 10 ST. JAMES AVE. |
| 11TH FLOOR |
| BOSTON, MA 02116 |
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Assignment:
8
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SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
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| 2100 ROSS AVENUE, SUITE 1850 |
| DALLAS, TEXAS 75201 |
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| SUSAN C. DINICOLA |
| HOLLAND & KNIGHT LLP |
| 10 ST. JAMES AVENUE |
| BOSTON, MA 02116 |
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