Patent Assignment
Reel/Frame 004355/0756
Assignment of Assignors Interest.
Recorded: 1985-01-31
Pages: 1
Assignors
PEIFFER, DENNIS G.
Executed: 1983-10-18
LUNDBERG, ROBERT D.
Executed: 1983-10-18
WALKER, THAD O.
Executed: 1983-11-03
Assignee
EXXON RESEARCH AND ENGINEERING COMPANY
A CORP OF DE, NOT PROVIDED
Covered Property
(1)
Fluid Loss Additive for Well Drilling
Patent:
4,510,998 →
Application:
06/556,398 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.