Patent Assignment
Reel/Frame 003984/0659
Assignment of Assignors Interest.
Recorded: 1982-05-13
Pages: 3
Assignor
PUROPORE INC.
Executed: 1982-03-01
Assignee
GELSUB, INC.
14332 CHAMBERS RD., TUSTIN, CALIFORNIA, 92680
Covered Properties
(6)
Integral Microporous High Void Volume Polycarbonate Membranes and a Dr Y Process for Forming Same
Patent:
3,945,926 →
Application:
05/293,943 →
Process for Spinning Dry-Fiber Cellulose Acetate Hollow Fiber Membrane S
Patent:
4,035,459 →
Application:
05/573,732 →
Dry Process for Forming Polycarbonate Membranes
Patent:
4,048,271 →
Application:
05/646,735 →
Dense Hollow Fiber Cellulosic Membrane
Patent:
4,219,517 →
Application:
05/950,664 →
Polyoxyethylene Grafted Membrane Materials with Grafting Links Derived from a Diisocyanate
Patent:
4,280,970 →
Application:
06/004,828 →
Highly Anisotropic Membrances
Patent:
4,333,972 →
Application:
06/162,679 →
Related Assignments
(4)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 8, 1980
From: KESTING ROBERT E.
To: PUROPORE INC.
Reel/Frame 003798/0887 →
Security Interest
Nov 1, 1991
From: GELMAN SCIENCES, INC., A CORP. OF MI
To: NBD BANK, N.A.
Reel/Frame 005897/0628 →
Statement of Change-Security Interest
Mar 23, 1998
From: NBD BANK, N.A.
To: GELMAN SCIENCES, INC.
Reel/Frame 009052/0838 →
Assignment of Assignor's Interest
Mar 27, 1998
From: GELMAN SCIENCES, INC.
To: PALL CORPORATION
Reel/Frame 009146/0135 →