Patent Assignment
Reel/Frame 006689/0845
Assignment of Assignor's Interest
Recorded: 1993-09-07
Pages: 5
Assignor
SPEEDFAM CORPORATION
Executed: 1993-01-23
Assignee
WESTECH SYSTEMS INC.
3422 EAST ATLANTA, PHOENIX, ARIZONA, 85040
Covered Properties
(2)
Polishing Apparatus
Patent:
4,141,180 →
Application:
05/835,295 →
Polishing Apparatus
Patent:
4,193,226 →
Application:
05/938,036 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 19, 1981
From: KAYEX CORPORATION
To: GENERAL SIGNAL CORPORATION, A CORP. OF N.Y.
Reel/Frame 003863/0240 →
Assignment of Assignors Interest.
Feb 25, 1991
From: GENERAL SIGNAL CORPORATION, A CORP. OF NY
To: SPEEDFAM CORPORATION, 509 NORTH THIRD AVE., DES PLAINES, IL 60016 A CORP. OF IL
Reel/Frame 005610/0747 →
Security Agreement
Jun 21, 1996
From: IPEC PLANAR PHOENIX, INC.
To: FIRST INTERSTATE BANK OF ARIZONA, N.A., AS AGENT UNDER LOAN AGREEMENT DATED 4/24/96
Reel/Frame 008000/0343 →
Release of Security Agreement
Feb 4, 1999
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT, FORMERLY FIRST INTERSTATE BANK OF ARIZONA, N.A.
To: IPEC PLANAR, INC.
Reel/Frame 009737/0563 →
Merger
Jul 16, 1999
From: SPEEDFAM CORPORATION
To: SPEEDFAM-IPEC CORPORATION
Reel/Frame 010078/0150 →