Patent Assignment
Reel/Frame 015116/0519
Release of Security Interest
Recorded: 2004-03-18
Pages: 5
Assignor
CANADIAN IMPERIAL BANK OF COMMERCE
Executed: 2004-03-12
Assignee
NORTHSTAR DRILLING SYSTEMS INC.
1507 4TH STREET, C/O NQL DRILLING TOOLS, INC., NISKU, ALBERTA, T9E 7M9, CANADA
Covered Properties
(6)
Apparatus and Method for Logging Wells While Drilling
Patent:
4,578,675 →
Application:
06/429,823 →
Apparatus and Method for Logging Wells While Drilling
Patent:
4,630,243 →
Application:
06/477,262 →
Mwd Tool for Measuring Weight and Torque on Bit
Patent:
4,608,861 →
Application:
06/668,980 →
Apparatus and Method for Down-Hole Em Telemetry While Drilling
Patent:
4,739,325 →
Application:
06/838,639 →
Method of Making Patterned Flexible Sheet-Like Articles and Articles Made by Such Method
Patent:
4,749,605 →
Application:
06/904,052 →
Method and Apparatus for Communicating Signals from Within an Encased Borehole
Patent:
5,576,703 →
Application:
08/574,950 →
Related Assignments
(12)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 30, 1982
From: MACLEOD, NORMAN C.
To: MACLEOD LABORATORIES, INC., A CORP. OF CA.
Reel/Frame 004055/0383 →
Assignment of Assignors Interest.
Mar 21, 1983
From: MACLEOD, NORMAN C.
To: MACLEOD LABORATORES, INC., A CA CORP.
Reel/Frame 004136/0711 →
Assignment of Assignors Interest.
Nov 7, 1984
From: WACHTLER, WILLIAM J.; YANG, THOMAS M.
To: MACLEOD LABORATORIES, INC., A CORP. OF CA
Reel/Frame 004333/0211 →
Assignment of Assignors Interest.
Mar 6, 1986
From: MACLEOD, NORMAN C.
To: MACLEOD LABORTORIES INCORPORATED, A CORP OF CALIFORNIA
Reel/Frame 004542/0491 →
Assignment of Assignors Interest.
Jan 27, 1992
From: MACLEOD LABORATORIES, INC., A CA CORPORATION
To: PROTECHNICS RESERVOIR SERVICES, INC. A NV CORPORATION
Reel/Frame 005988/0650 →
Assignment of Assignor's Interest
Feb 11, 1999
From: REAL TIME DIAGNOSTICS, INC.
To: CORE LABORATORIES, INC.
Reel/Frame 009748/0661 →
Assignment of Assignor's Interest
Feb 11, 1999
From: PROTECHNICS RESERVOIR SERVICES, INC.
To: CORE LABORATORIES, INC.
Reel/Frame 009748/0654 →
Assignment of Assignor's Interest
Mar 5, 2001
From: CORE LABORATORIES, INC.
To: NORTHSTAR DRILLING SYSTEMS, INC.
Reel/Frame 011874/0335 →
Appointment of Agent
Oct 29, 2001
From: OWNER, NORTHSTAR DRILLING SYSTEMS INC.
To: LAMBERT, ANTHONY R.
Reel/Frame 012287/0206 →
Security Interest
Sep 12, 2003
From: NORTHSTAR DRILLING SYSTEMS INC.
To: CANADIAN IMPERIAL BANK OF COMMERCE
Reel/Frame 014506/0431 →
Transfer of Title
Jul 23, 2004
From: NORTHSTAR DRILLING SYSTEMS INC.
To: NQL ENERGY SERVICES CANADA LTD.
Reel/Frame 014892/0200 →
Assignment of Assignor's Interest
Apr 30, 2008
From: NQL ENERGY SERVICES CANADA LTD.
To: NATIONAL OILWELL VARCO, L.P.
Reel/Frame 020876/0333 →