Patent Assignment
Reel/Frame 003915/0107
Assignment of Assignors Interest.
Recorded: 1981-10-08
Pages: 1
Assignor
SPANGLER, GLENN E.
Executed: 1980-08-18
Covered Property
(1)
Membrane Interface for Ion Mobility Detector Cells
Patent:
4,311,669 →
Application:
06/180,219 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Oct 31, 1988
From: ENVIRONMENTAL ANALYTICAL SYSTEMS, INC.
To: NATIONAL WESTMINSTER BANK USA, A NATIONAL BANKING ASSOCIATION
Reel/Frame 005006/0599 →
Assignment of Assignors Interest.
Oct 31, 1988
From: ALLIED-SIGNAL INC.
To: ENVIRONMENTAL ANALYTICAL SYSTEMS, INC., A DE CORP.
Reel/Frame 005006/0607 →
Assignment of Assignors Interest.
Jun 16, 1989
From: ALLIED-SIGNAL INC.
To: ENVIROMENTAL TECHNOLOGIES GROUP, INC.
Reel/Frame 005115/0035 →
Security Agreement
Apr 1, 1997
From: ENVIRONMENTAL TECHNOLOGIES GROUP, INC.
To: CONGRESS FINANCIAL CORPORATION
Reel/Frame 008454/0337 →