Patent Assignment
Reel/Frame 004967/0306
Assignment of Assignors Interest.
Recorded: 1988-10-27
Pages: 3
Assignor
TRW INC., A CORP. OF OH
Executed: 1988-10-14
Assignee
SANDVIK ROCK TOOLS, INC.
1000 INDUSTRIAL PARK ROAD, A CORP. OF DE, BRISTOL, VIRGINIA, 24203
Covered Properties
(12)
Cutter Insert for Rock Bits
Patent:
3,693,736 →
Application:
04/855,208 →
Method of Mounting Cutter Inserts in Bit Bodies and Removing the Same Therefrom
Patent:
3,805,364 →
Application:
05/259,921 →
Rotary Drilling Head and Method of Breaking Pipe Joints
Patent:
3,851,714 →
Application:
05/427,488 →
Control Valve
Patent:
4,137,933 →
Application:
05/768,040 →
Reciprocating Pump Piston
Patent:
4,601,235 →
Application:
06/621,832 →
Carburized High Chrome Liner
Patent:
4,568,393 →
Application:
06/678,955 →
Round/Flat Carbide Seat
Patent:
4,660,660 →
Application:
06/735,038 →
Method of Forming Closely Sized Openings
Patent:
4,761,191 →
Application:
06/945,837 →
Rock Drilling Bit and a Method of Producing the Same
Patent:
4,756,373 →
Application:
06/946,442 →
Elliptical Thread Design
Patent:
4,799,844 →
Application:
07/142,789 →
Crossarm Valve Seat with Pulling Ledge
Patent:
4,928,726 →
Application:
07/212,936 →
Pilot-Valve-Controlled Percussion Drilling Tool
Patent:
4,878,550 →
Application:
07/219,394 →
Related Assignments
(17)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 18, 1984
From: ROBERTS, EMMETT T.
To: TRW INC., A CORP. OF OH
Reel/Frame 004305/0331 →
Assignment of Assignors Interest.
Dec 5, 1984
From: KANE, ROBERT F.; VAN ARNAM, WILLIAM D. III
To: TRW INC., A CORP OF OHIO
Reel/Frame 004345/0689 →
Assignment of Assignors Interest.
May 17, 1985
From: YUH, CHING-FEN
To: TRW INC., CLEVELAND, OH A CORP OF OH
Reel/Frame 004418/0628 →
Assignment of Assignors Interest.
Jan 11, 1988
From: CHUANG, JO-YU
To: TRW INCORPORATED, A CORP. OF OHIO
Reel/Frame 004836/0326 →
Assignment of Assignors Interest.
Jun 29, 1988
From: JOHNSON, JERRY E.; HOERNER, CLINTON C. JR.
To: TRW INC., A CORP. OF OHIO
Reel/Frame 004902/0684 →
Assignment of Assignors Interest.
Jul 15, 1988
From: CHUANG, JO-YU
To: TRW INC., A CORP. OF OHIO
Reel/Frame 004922/0760 →
Assignment of Assignors Interest.
Dec 21, 1989
From: SANDVIK ROCK TOOLS, INC., 1000 INDUSTRIAL PARK ROAD, BRISTOL, VA 24203, A CORP. OF DE
To: NATIONAL-OILWELL, A GENERAL PARTNERSHIP OF DE
Reel/Frame 005199/0406 →
Assignment of Assignors Interest.
Jun 18, 1990
From: SANDVIK ROCK TOOLS, INC., A CORP OF DE
To: NATIONAL-OILWELL, A GENERAL PARTNERSHIP OF DE
Reel/Frame 005365/0292 →
Assignment of Assignors Interest.
Apr 13, 1991
From: SANDVIK ROCK TOOLS, INC., A CORP. OF DE
To: CUBEX LIMITED A CANADIAN CORPORATION
Reel/Frame 005697/0337 →
Security Interest
Apr 6, 1993
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 006486/0856 →
Release of Security Interest
Mar 1, 1995
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007453/0241 →
Security Interest
Mar 7, 1995
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007467/0232 →
Release of Security Interest
Jan 24, 1996
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007613/0782 →
Patent Security Agreement
Feb 5, 1996
From: NATIONAL-OILWELL, L.P.
To: GENERAL ELECTRIC CAPITAL CORPORATION (AS ADMINISTRATIVE AGENT)
Reel/Frame 007854/0582 →
Change of Name
Sep 23, 1996
From: NATIONAL-OILWELL
To: NATIONAL-OILWELL, L.P.
Reel/Frame 008146/0930 →
Release and Termination of Patent Security Agreement
Nov 14, 1997
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINSTRATIVE AGENT
To: NATIONAL-OILWELL, L.P.
Reel/Frame 008820/0157 →
Release of Patent Security Interest
Jan 15, 1998
From: GENERAL ELECTRIC CAPITAL CORP.
To: NATIONAL-OILWELL, L.P.
Reel/Frame 008907/0847 →