Patent Assignment
Reel/Frame 004947/0700
Assignment of Assignors Interest.
Recorded: 1988-09-22
Pages: 1
Assignor
SYVERSON, DANIEL J.
Executed: 1988-09-19
Assignee
FSI INTERNATIONAL, INC., A MN CORP.
322 LAKE HAZELTINE DRIVE, JONATHAN INDUSTRIAL CENTER, CHASKA, MINNESOTA, 55318
Covered Property
(1)
Method and Apparatus for Controlling Simultaneous Etching of Front and Back Sides of Wafers
Patent:
4,857,142 →
Application:
07/247,712 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jan 3, 1989
From: FSI CORPORATION
To: FSI INTERNATIONAL, INC.
Reel/Frame 005181/0843 →
Change of Name
Dec 3, 1989
From: FSI CORPORATION A CORP. MN
To: FSI INTERNATIONAL, INC. A CORP. OF MN
Reel/Frame 005207/0095 →
Security Interest
Mar 16, 1992
From: FSI INTERNATIONAL, INC., A CORPORATION OF MN
To: CONGRESS FINANCIAL CORPORATION AN IL CORPORATION
Reel/Frame 006041/0930 →
Release of Patents
Apr 4, 1994
From: CONGRESS FINANCIAL CORPORATION (CENTRAL)
To: FSI INTERNATIONAL, INC.
Reel/Frame 006924/0912 →