Patent Assignment
Reel/Frame 005052/0913
Assignment of Assignors Interest.
Recorded: 1989-03-08
Pages: 1
Assignor
JOHNSON, JERRY E.
Executed: 1989-03-03
Assignee
SANDVIK ROCK TOOLS, INC.
1000 INDUSTRIAL RD., A CORP. OF DE, BRISTOL, VIRGINIA
Covered Property
(1)
Valve with Replaceable Seal Element
Patent:
4,922,957 →
Application:
07/321,157 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
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 →