Patent Assignment
Reel/Frame 003796/0622
Assignment of Assignors Interest.
Recorded: 1980-08-25
Pages: 2
Assignor
FARRIS RICHARD C.
Executed: 1980-08-22
Assignee
WESTERN GEOPHYSICAL CO. OF AMERICA, A CORP. OF DE
HOUSTON,, TEXAS
Covered Property
(1)
Actuator for an Air Gun Having a Reciprocating Shuttle Valve
Patent:
4,324,311 →
Application:
06/180,788 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 28, 1995
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS, INC.
Reel/Frame 007644/0138 →
Corrected Assignment
Feb 23, 1996
From: WESTERN ATLAS INTERNATIONAL, INC.
To: I/O EXPLORATION PRODUCTS (U.S.A), INC.
Reel/Frame 007815/0841 →
Assignment of Assignor's Interest
Jun 8, 1998
From: I/O EXPLORATION PRODUCTS (U.S.A.), INC.
To: INPUT/OUTPUT, INC.
Reel/Frame 009245/0506 →