Patent Assignment
Reel/Frame 004556/0850
Assignment of Assignors Interest.
Recorded: 1986-05-19
Pages: 2
Assignor
CHOI, WAI M.
Executed: 1986-05-19
Assignee
W. R. GRACE & CO.
55 HAYDEN AVENUE, A CORP. OF CONNECTICUT, LEXINGTON, MASSACHUSETTS, 02173
Covered Property
(1)
Battery Separator
Patent:
4,734,344 →
Application:
06/864,682 →
Related Assignments
(5)
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 Assignor's Interest
Nov 23, 1994
From: W.R. GRACE & CO.-CONN.
To: POLYPORE GROUP, INC.
Reel/Frame 007215/0270 →
Change of Name
Dec 12, 1994
From: POLYPORE GROUP, INC.
To: DARAMIC, INC.
Reel/Frame 007244/0435 →
Security Interest
Feb 17, 1995
From: POLYPORE GROUP, INC.
To: CHASE MANHATTAN BANK, N.A., THE A DE CORP.
Reel/Frame 007434/0297 →
Security Agreement
Nov 29, 2002
From: CELGARD, INC.
To: CHASE MANHATTAN BANK, AS ADMINISTRATIVE AGENT, THE
Reel/Frame 013964/0538 →