Patent Assignment
Reel/Frame 005243/0278
Change of Name Effective Date, June 7, 1989, De.
Recorded: 1990-03-05
Pages: 3
Assignor
GRACE NATURAL RESOURCES CORP., A CORP. OF DE.
Executed: 1989-06-05
Assignee
Covered Property
(1)
Intermediate Weight Drill String Member
Patent:
4,460,202 →
Application:
06/210,479 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Nov 27, 1984
From: CHANCE, GLENN G.; KOVENSKY, WILLIAM
To: GRACE NATURAL RESOURCES CORP., A CORP. OF DE
Reel/Frame 004330/0201 →
Assignment of Assignors Interest.
Mar 25, 1993
From: GRACE ENERGY CORPORATION
To: HOMCO INTERNATIONAL, INC.
Reel/Frame 006459/0140 →
Assignment of Assignor's Interest
Aug 30, 1993
From: HOMCO INTERNATIONAL, INC.
To: WEATHERFORD U.S., INC.
Reel/Frame 006663/0918 →
Security Interest
Sep 7, 1993
From: WEATHERFORD U.S., INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOICATION
Reel/Frame 006677/0420 →
Release from Security Agreement
Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD U.S., INC.
Reel/Frame 006968/0187 →