Assignment of Assignor's Interest

Recorded: 2008-06-04 Pages: 3

Assignor

GIPSON, TOMMIE CARROLL

Executed: 2008-05-28

Assignee

NORTHERN PLAINS DRILLING, INC.

2711 N. HASKELL AVE., STE. 2800, LB 22, DALLAS, TEXAS, 75204

Covered Property (1)

Tension Enhancer for Wheel-Type Tensioner

Patent: 7,552,890 →

Application: 12/156,756 →

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.