Patent Assignment
Reel/Frame 004434/0971
Assignment of Assignors Interest.
Recorded: 1985-07-15
Pages: 1
Assignee
NALCO CHEMICAL COMPANY, A CORP. OF DE.
OAK BROOK,, ILLINOIS
Covered Property
(1)
Choline for Neutralizing Naphthenic Acid in Fuel and Lubricating Oils
Patent:
4,600,518 →
Application:
06/754,720 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.