Patent Assignment
Reel/Frame 020535/0801
Assignment of Assignor's Interest
Recorded: 2008-02-20
Pages: 2
Assignor
U.S. STEEL MINING COMPANY, LLC
Executed: 2001-07-17
Assignee
CDX GAS, LLC
5485 BELTLINE ROAD, SUITE 280, DALLAS, TEXAS, 75240-7656
Covered Property
(1)
Method and System for Accessing Subterranean Deposits from the Surface and Tools Therefor
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 20, 2008
From: ZUPANICK, JOSEPH A.
To: CDX GAS, LLC
Reel/Frame 020535/0776 →
Change of Name
Nov 2, 2009
From: CDX GAS, LLC
To: VITRUVIAN EXPLORATION, LLC
Reel/Frame 023456/0198 →
Assignment of Assignor's Interest
Feb 12, 2014
From: VITRUVIAN EXPLORATION, LLC
To: EFFECTIVE EXPLORATION LLC
Reel/Frame 032263/0664 →