Patent Assignment
Reel/Frame 003810/0790
Assignment of Assignors Interest.
Recorded: 1980-11-24
Pages: 1
Assignor
GRYSKIEWICZ GREGORY A.
Executed: 1980-01-31
Assignee
UOP INC., A CORP. OF DEL.
DES PLAINES, ILLINOIS
Covered Property
(1)
Laser Slotted Plastic Well Screen
Patent:
4,343,358 →
Application:
06/119,279 →
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 →