IP Library Assignment 006418/0790
Patent Assignment
Reel/Frame 006418/0790

Assignment of Assignors Interest.

Recorded: 1993-02-04 Pages: 3
Assignors
HELMS, CHARLES M.
Executed: 1993-02-03
BLEIFELD, CHARLES V.
Executed: 1993-02-03
Assignee
SPECIALITY TOOLSAND SUPPLY, INC.
ROUTE 3, BOX 279, ALVIN, TEXAS, 77511
Covered Property (1)
Top Entry Sub Arrangement
Patent: 5,284,210 →
Application: 08/013,649 →
Related Assignments (5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 14, 1994
From: HELMS, CHARLES M.; BLIEFELD, CHARLES V.
To: SPECIALTY RENTAL TOOLS & SUPPLY, INC.
Reel/Frame 007030/0065 →
Security Agreement Mar 14, 2001
From: OIL STATES; A-Z TERMINAL CORPORATION; CAPSTAR DRILLING, INC.; CECO HOLDINGS, INC.
To: CREDIT SUISSE FIRST BOSTON, AS U.S. COLLATERAL AGENT
Reel/Frame 011566/0720 →
Release of Security Interest Nov 20, 2003
From: CREDIT SUISSE FIRST BOSTON
To: OIL STATES INTERNATIONAL, INC.
Reel/Frame 014146/0093 →
Security Agreement Dec 1, 2003
From: OIL STATES INDUSTRIES, INC.; A-Z TERMINAL CORPORATION; CAPSTAR DRILLING, L.P.; CAPSTAR DRILLING, GP, L.L.C.
To: WELLS FARGO BANK OF TEXAS
Reel/Frame 014709/0287 →
Merger Oct 16, 2012
From: SPECIALTY RENTAL TOOLS & SUPPLY, L.L.C.
To: OIL STATES ENERGY SERVICES, L.L.C.
Reel/Frame 029139/0473 →