Patent Assignment
Reel/Frame 003808/0753
Assignment of Assignors Interest.
Recorded: 1980-10-31
Pages: 2
Assignor
OIL WELL PUMPING SYSTEMS ANALYSTS, INC.
Executed: 1980-10-13
Assignee
ELECTRONIC SYSTEMS DIVISION, GEOSOURCE, INC.
SOUTH POST OAK RD., STE. 2000,, HOUSTON, TEXAS, 77036
Covered Property
(1)
Oil Well Control Circuit
Patent:
4,316,702 →
Application:
06/130,977 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Oct 16, 1989
From: G & H MANAGEMENT COMPANY
To: HALLIBURTON GEOPHYSICAL SERVICES, INC.
Reel/Frame 005252/0162 →
Change of Name November 13, 1988, Dealware
Oct 16, 1989
From: GEOSOURCE, INC.
To: G & H MANAGEMENT COMPANY
Reel/Frame 005252/0167 →
Merger
Nov 15, 1993
From: HALLIBURTON GEOPHYSICAL SERVICES, INC.
To: HALLIBURTON COMPANY
Reel/Frame 006777/0052 →
Assignment of Assignor's Interest
Mar 28, 1994
From: HALLIBURTON COMPANY
To: WESTERN ATLAS INTERNATIONAL, INC.
Reel/Frame 006970/0236 →