Patent Assignment
Reel/Frame 004755/0267
Assignment of Assignors Interest.
Recorded: 1987-08-31
Pages: 2
Assignee
ATLANTIC RICHFIELD COMPANY
A CORP OF DE, LOS ANGELES, CALIFORNIA
Covered Property
(1)
Wellbore Cleanout Apparatus and Method
Patent:
4,744,420 →
Application:
07/076,565 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.