Assignment of Assignors Interest.

Recorded: 1983-10-24 Pages: 1

Assignors

TURNER, S. RICHARD

Executed: 1982-07-28

LUNDBERG, ROBERT D.

Executed: 1982-07-28

WALKER, THAD O.

Executed: 1982-08-10

Assignee

Covered Property (1)

Drilling Fluids Based on Sulfonated Elastomeric Polymers

Patent: 4,425,462 →

Application: 06/416,937 →

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.