Patent Assignment
Reel/Frame 003827/0754
Assignment of Assignors Interest.
Recorded: 1981-02-17
Pages: 1
Assignee
GAF CORPORATION
140 WEST 51ST ST., A CORP. OF DE., NEW YORK, NEW YORK, 10020
Covered Property
(1)
Purification of Pyrrolidone
Patent:
4,276,215 →
Application:
05/818,564 →
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Jun 14, 1989
From: DORSET INC. A CORP OF DELAWARE
To: CHASE MANHATTAN BANK, THE NATIONAL ASSOCIATION
Reel/Frame 005122/0370 →
Change of Name Effective on 04/11/1989
Oct 30, 1989
From: DORSET INC.
To: GAF CHEMICALS CORPORATION
Reel/Frame 005251/0071 →
Change of Name Effective April 10, 1989
Oct 30, 1990
From: GAF CORPORATION, A DE CORP.
To: DORSET INC., A DE CORP.
Reel/Frame 005250/0940 →
Security Interest
Dec 3, 1990
From: GAF CHEMICALS CORPORATION, A CORP. OF DE
To: CHASE MANHATTAN BANK (NATIONAL ASSOCIATION), THE
Reel/Frame 005604/0020 →
Assignment of Assignors Interest.
Jun 17, 1991
From: GAF CHEMICALS CORPORATION
To: ISP 3 CORP
Reel/Frame 005949/0001 →
Change of Name Effective on 06/06/1991
Jun 17, 1991
From: ISP 3 CORP.
To: ISP INVESTMENTS INC.
Reel/Frame 005949/0051 →
Released by Secured Party
Aug 13, 1992
From: CHASE MANHATTAN BANK, THE (NATIONAL ASSOCIATION)
To: GAF CHEMICALS CORPORATION; SUTTON LABORATORIES, INC.; GAF BUILDING MATERIALS CORPORATION
Reel/Frame 006243/0208 →