Patent Assignment
Reel/Frame 004272/0578
Assignment of Assignors Interest.
Recorded: 1984-06-25
Pages: 2
Assignee
UOP INC., DES PLAINES, IL A CORP. OF
DELAWARE
Covered Property
(1)
Expandable Packer Assembly for Sealing a Well Screen to a Casing
Patent:
4,482,086 →
Application:
06/520,267 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Oct 11, 1988
From: SIGNAL ENVIRONMENTAL SYSTEMS INC., A DE CORP
To: JOHNSON FILTRATION SYSTEMS INC., A CORP. OF DE
Reel/Frame 004962/0258 →
Change of Name
Aug 9, 1993
From: JOHNSON FILTRATION SYSTEMS INC.
To: WHEELABRATOR ENGINEERED SYSTEMS INC.
Reel/Frame 006646/0160 →