Patent Assignment
Reel/Frame 004948/0387
Assignment of Assignors Interest.
Recorded: 1988-09-26
Pages: 2
Assignor
KORIN, AMOS
Executed: 1988-06-15
Assignee
Covered Property
(1)
Drainage Disc for Membrane Assembly
Patent:
4,869,821 →
Application:
07/187,627 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Aug 24, 1989
From: GRACE MERGER CORP. A CT CORP. (MERGED INTO); W. R. GRACE & CO. A CT. CORP.
To: W. R. GRACE & CO.-CONN.
Reel/Frame 005206/0001 →
Assignment of Assignors Interest.
Jan 8, 1993
From: W.R. GRACE & CO. -CONN.
To: AMICON, INC.
Reel/Frame 006376/0566 →
Assignment of Assignor's Interest
Jun 9, 1997
From: W.R. GRACE & CO.-CONN. AND AMICON,INC.
To: MILLIPORE INVESTMENT HOLDINGS LIMITED
Reel/Frame 008587/0224 →