Patent Assignment
Reel/Frame 006727/0132
Assignment of Assignor's Interest
Recorded: 1993-10-04
Pages: 2
Assignor
DARLAND, FRED S.
Executed: 1993-08-16
Assignee
ATLANTIC RICHFIELD COMPANY
2300 WEST PLANO PARKWAY, PLANO, TEXAS, 75075
Covered Property
(1)
Survey System and Method
Patent:
5,467,290 →
Application:
08/108,364 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 4, 1993
From: DURGIN, JERRY A.
To: ATLANTIC RICHFIELD COMPANY
Reel/Frame 006721/0733 →
Security Agreement
Jan 10, 2005
From: ARCH COAL, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 015541/0001 →
Security Agreement
Jun 14, 2011
From: ARCH COAL, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 026440/0760 →
Acknowledgment of Security Interest in Patents (Borrower)
May 2, 2014
From: ARCH COAL, INC.
To: UMB BANK NATIONAL ASSOCIATION
Reel/Frame 032815/0292 →
Release of Security Interest
Jun 24, 2016
From: PNC BANK NATIONAL ASSOCIATION
To: ARCH COAL, INC.
Reel/Frame 039003/0400 →
Patent Security Agreement
Oct 5, 2016
From: ARCH COAL, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, IN ITS CAPACITY AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT FOR THE SECURED PARTIES
Reel/Frame 040234/0699 →