Patent Assignment
Reel/Frame 003949/0129
Change of Name Effective Date 6-24-81 State of De.
Recorded: 1982-02-16
Pages: 3
Assignor
SPERRY-SUN, INC.
Executed: 1981-06-25
Assignee
Covered Property
(1)
Mud Pressure Control System
Application:
06/295,431 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.