Patent Assignment
Reel/Frame 005463/0705
Assignment of Assignors Interest.
Recorded: 1990-10-11
Pages: 2
Assignee
SHELL OIL COMPANY
P.O. BOX 2463, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Vacuum Method for Removing Soil Contamination Utilizing Surface Electrical Heating
Patent:
4,984,594 →
Application:
07/427,418 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.