Patent Assignment
Reel/Frame 004006/0894
Assignment of Assignors Interest.
Recorded: 1982-06-07
Pages: 1
Assignee
Covered Property
(1)
Method and Apparatus for Well Cementing Through a Tubular Member
Patent:
4,450,912 →
Application:
06/385,616 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jul 15, 1993
From: BAKER OIL TOOLS, INC.
To: BAKER HUGHES PRODUCTION TOOLS, INC.
Reel/Frame 006608/0588 →
Assignment of Assignor's Interest
Sep 7, 1993
From: BAKER HUGHES OILFIELD OPERATIONS, INC.
To: ENERPRO INTERNATIONAL, INC.
Reel/Frame 006680/0567 →
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 →