IP Library Assignment 006155/0984
Patent Assignment
Reel/Frame 006155/0984

Assignment of Assignors Interest.

Recorded: 1992-06-24 Pages: 3
Assignors
RICHMANN, SANDRA K.
Executed: 1992-04-29
LETSCHER, MARY BETH
Executed: 1992-04-28
Assignee
BETZ LABORATORIES, INC., A CORP. OF PA
4636 SOMERTON ROAD, TREVOSE, PENNSYLVANIA, 19053
Covered Property (1)
Use of Surfactants Having an Hlb Less Than 10 in the Deinking of Dry Toner Electrostatic Printed Wastepaper
Patent: 5,248,388 →
Application: 07/871,362 →
Related Assignments (5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Apr 2, 1993
From: BETZ LABORATORIES, INC.
To: BETZ PAPERCHEM, INC.
Reel/Frame 006475/0024 →
Change of Name Sep 20, 1996
From: BETZ PAPERCHEM, INC.
To: BETZDEARBORN PAPER PROCESS GROUP INC.
Reel/Frame 008146/0140 →
Notice of Grant of Security Interest Dec 26, 2000
From: HERCULES INCORPORATED, A DELAWARE CORPORATION; HERCULES CREDIT, INC. A DELAWARE CORPORATION; HERCULES FLAVOR, INC., A DELAWARE CORPORATION; WSP, INC., A DELAWARE CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 011410/0444 →
Release of Security Interest Jan 2, 2002
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: HERCULES INCORPORATED; HERCULES CREDIT, INC.; HERCULES FLAVOR, INC.; WSP, INC.
Reel/Frame 013663/0636 →
Release of Security Interest May 15, 2003
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: HERCULES INCORPORATED; HERCULES CREDIT, INC.; HERCULES FLAVOR, INC.; WSP, INC.
Reel/Frame 013669/0427 →