Patent Assignment
Reel/Frame 004121/0918
Assignment of Assignors Interest.
Recorded: 1983-01-31
Pages: 1
Assignor
CLARK, DAVID A.
Executed: 1983-01-21
Assignee
HUGHES TOOL COMPANY
P.O. BOX 2539, HOUSTON, TEXAS, 77001
Covered Property
(1)
Self-Energizing Locking Mechanism
Patent:
4,469,172 →
Application:
06/462,581 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.