Patent Assignment
Reel/Frame 003993/0511
Assignment of Assignors Interest.
Recorded: 1982-03-22
Pages: 1
Assignor
RICHARDSON, EUGENE M.
Executed: 1982-03-18
Assignee
CONTINENTAL EMSCO COMPANY
A CORP. OF DE, DALLAS, TEXAS
Covered Property
(1)
Well Drilling Apparatus or the Like with Position Monitoring System
Patent:
4,545,017 →
Application:
06/360,715 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.