Patent Assignment
Reel/Frame 004452/0861
Assignment of Assignors Interest.
Recorded: 1985-09-13
Pages: 1
Assignee
NALCO CHEMICAL COMPANY, A CORP. OF DE.
OAK BROOK, ILLINOIS
Covered Property
(1)
Styrene-Dialkyl Maleate Copolymers as Dewaxing Agents
Patent:
4,564,438 →
Application:
06/739,644 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.