Patent Assignment
Reel/Frame 004571/0605
Assignment of Assignors Interest.
Recorded: 1986-06-23
Pages: 2
Assignor
KOPPERS COMPANY, INC. A CORP. OF DE.
Executed: 1985-12-31
Assignee
NEVILLE-SYNTHESE ORGANICS, INC., A CORP. OF PA.
NEVILLE ISLAND, PITTSBURGH, PENNSYLVANIA, 15225
Covered Properties
(2)
Process for Separating Para-Cresol from a Mixture of Methylated and Ethylated Phenols
Patent:
4,267,389 →
Application:
06/053,438 →
Process for Separating T-Butylated Phenols
Patent:
4,423,253 →
Application:
06/372,056 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Dec 22, 1980
From: LESTON GERD
To: KOPPERS COMPANY, INC.
Reel/Frame 003816/0068 →
Assignment of Assignors Interest.
Apr 26, 1982
From: LESTON, GERD
To: KOPPERS COMPANY, INC.
Reel/Frame 004006/0016 →
Assignment of Assignors Interest.
Feb 16, 1989
From: KOPPERS COMPANY, INC.
To: KOPPERS INDUSTRIES, INC., A CORP. OF PA
Reel/Frame 005126/0140 →
Security Interest
Feb 27, 1989
From: KOPPERS INDUSTRIES, INC.
To: KOPPERS AND MELLON BANK, N.A.
Reel/Frame 005026/0517 →
Assignment of Assignor's Interest
Feb 17, 1994
From: MELLON BANK, N.A.
To: KOPPERS INDUSTRIES, INC.
Reel/Frame 006875/0231 →