Patent Assignment
Reel/Frame 005642/0052
Merger 5/1/91 Delaware
Recorded: 1991-03-07
Pages: 12
Assignors
SPITFIRE TOOL & MACHINE CO., INC., A CORP. OF IL (MERGED INTO)
Executed: 1981-04-28
GENERAL SIGNAL CORPORATION, A CORP. OF NY (CHANGED INTO)
Executed: 1981-04-28
Assignee
Covered Properties
(2)
Inner Gear Drive for Abrading Machines
Patent:
4,315,383 →
Application:
06/149,347 →
Polishing Fixture
Patent:
4,319,432 →
Application:
06/149,348 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
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 005610/0752 →
Security Interest 12/21/83
Mar 7, 1991
From: SPITFIRE TOOL & MACHINE CO., INC., A CORP. OF DE (MERGED INTO)
To: GENERAL SIGNAL CORPORATION, A CORP. OF NY
Reel/Frame 005642/0064 →
Merger
Jul 16, 1999
From: SPEEDFAM CORPORATION
To: SPEEDFAM-IPEC CORPORATION
Reel/Frame 010078/0150 →