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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
07/23/1991
Application #:
07182311
Filing Dt:
04/15/1988
Inventors:
DAVID CHEUNG, WU T. YIU, DONNY LEUNG
Title:
COMBINED KEYBOARD AND ELECTRONIC LEARNING AID
Assignment: 1
Reel/Frame:
004914/0854Recorded: 07/20/1988Pages: 2
Conveyance:
NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: 09-01-87
Assignors:
Exec Dt:
06/14/1988
Exec Dt:
06/14/1988
Exec Dt:
06/14/1988
Assignee:
Correspondent:
DICK & HARRIS
200 WEST MADISON ST., STE. 3200
CHICAGO, IL 60606
Assignment: 2
Reel/Frame:
006794/0492Recorded: 12/08/1993Pages: 7
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
09/29/1993
Assignee:
380 WEST PALATINE ROAD
WHEELING, ILLINOIS 60090
Correspondent:
LAW OFFICES OF DICK AND HARRIS
RICHARD EUGENE DICK, ESQ.
181 WEST MADISON STREET
SUITE 3800
CHICAGO, IL 60602

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