IP Library › Assignment 003879/0642
Patent Assignment
Reel/Frame 003879/0642

Assignment of Assignors Interest.

Recorded: 1981-04-16 Pages: 2
Assignors
SMITH DONALD O.
Executed: 1981-04-13
HARTE KENNETH J.
Executed: 1981-04-13
Assignee
CONTROL DATA CORPORATION, A CORP. OF DE
8100-34TH AVENUE, SOUTH, MINNEAPOLIS, MINNESOTA, 55440
Covered Property (1)
Method and Apparatus for Exposing Multi-Level Registered Patterns Interchangeably Between Stations of a Multi-Station Electron-Beam Array Lithography (Ebal) System
Patent: 4,430,571 →
Application: 06/254,870 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Sep 2, 1992
From: CERIDIAN CORPORATION
To: ST. CLAIR INTELLECTUAL PROPERTY CONSULTANTS, INC. A CORP. OF MI
Reel/Frame 006276/0183 →
Assignment of Assignor's Interest Dec 26, 1995
From: ST. CLAIR INTELLECTUAL PROPERTY CONSULTANTS, INC.
To: L.G. SEMICON CO., LTD.
Reel/Frame 007863/0667 →