Patent Assignment
Reel/Frame 005006/0321
Assignment of Assignors Interest.
Recorded: 1988-12-12
Pages: 3
Assignors
LEHR, DOUGLAS J.
Executed: 1988-12-02
BELL, MERLE L.
Executed: 1988-12-02
RUBBO, RICHARD P.
Executed: 1988-12-02
FOREHAND, RICHARD L.
Executed: 1988-11-25
Assignee
BAKER HUGHES INCORPORATED, A DE CORP.
3900 ESSEX LANE, SUITE 1200, HOUSTON, TEXAS, 77027
Covered Property
(1)
Subterranean Well Casing Float Tool
Patent:
4,872,510 →
Application:
07/252,043 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 7, 1993
From: BAKER HUGHES INCORPORATED
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 006727/0808 →
Assignment of Assignor's Interest
Sep 14, 1993
From: ENERPRO INTERNATIONAL, INC.
To: FIRST INTERSTATE BANK OF TEXAS, N.A.
Reel/Frame 006705/0467 →
Release of Security Interest
May 17, 1996
From: FIRST INTERSTATE BANK OF TEXAS, N.A.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 007945/0859 →
Release of Lien
Aug 13, 1996
From: FIRST INTERSTATE BANK OF TEXAS, N.A.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 008077/0049 →