Patent Assignment
Reel/Frame 003915/0413
Assignment of Assignors Interest.
Recorded: 1981-10-14
Pages: 1
Assignor
BRENNAN, EARL D.
Executed: 1980-08-18
Assignee
KOPPERS COMPANY, INC.PITTSBURGH
PENNSYLVANIA
Covered Property
(1)
Process and Apparatus for Separating and Purifying a Crystalline Material
Patent:
4,309,878 →
Application:
06/180,308 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Dec 16, 1988
From: ISC ACQUISTION COMPANY
To: ALGEMENE BANK NEDERLAND N.V., HOUSTON AGENCY
Reel/Frame 004994/0188 →
Assignment of Assignors Interest.
Jan 23, 1989
From: KOPPERS COMPANY, INC.,
To: ISC ACQUISITION COMPANY, A CORP. OF DE.
Reel/Frame 005009/0188 →
Change of Name January 17, 1989, Delaware
Jul 31, 1989
From: ISC ACQUISITION COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 005138/0231 →
Change of Name
Sep 25, 1989
From: ISC ACQUISITION COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 005142/0420 →
Security Agreement
Jul 6, 1998
From: INDSPEC CHEMICAL CORPORATION
To: ABN AMRO BANK N.V.
Reel/Frame 009297/0134 →