Patent Assignment
Reel/Frame 003953/0865
Assignment of Assignors Interest.
Recorded: 1982-03-08
Pages: 1
Assignor
LEDGERWOOD, LEROY W. III
Executed: 1982-01-19
Assignee
HUGHES TOOL COMPANY, A CORP. OF DE
P.O. BOX 2539, HOUSTON, TEXAS, 77001
Covered Property
(1)
Earth Boring Drill Bit with Snap Ring Cutter Retention
Patent:
4,344,658 →
Application:
06/174,483 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.