Patent Assignment
Reel/Frame 003989/0316
Assignment of Assignors Interest.
Recorded: 1982-03-22
Pages: 1
Assignee
ERCO INDUSTRIES LIMITED
2 GIBBS RD., ISLINGTON, ONTARIO, CANADA
Covered Property
(1)
Bleaching Procedure Using Chlorine Dioxide and Chlorine Solutions
Patent:
4,409,066 →
Application:
06/360,598 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger 12-30-84
Mar 4, 1985
From: ERCO INDUSTRIES LIMITED
To: TENNECO CANADA INC.
Reel/Frame 004368/0762 →
Assignment of Assignors Interest.
Aug 25, 1992
From: TENNECO CANADA INC., A CORP. OF ONTARIO
To: STERLING CANADA, INC., A CORP. OF DE
Reel/Frame 006251/0006 →
Security Interest
Aug 25, 1992
From: STERLING CANADA, INC. A DE CORP.
To: BANK OF NOVA SCOTIA, THE
Reel/Frame 006258/0484 →
Release of Security Interest
May 8, 1995
From: BANK OF NOVA SCOTIA, THE
To: STERLING CHEMICALS, INC
Reel/Frame 007467/0397 →