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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
06/09/1981
Application #:
06001949
Filing Dt:
01/08/1979
Inventor:
ELMER VICTOR CARLSON
Title:
ACOUSTIC TRANSDUCER OF IMPROVED CONSTRUCTION
Assignment: 1
Reel/Frame:
005362/0584Recorded: 07/19/1990Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
06/30/1990
Assignee:
Correspondent:
STEPHEN R. ARNOLD
WALLENSTEIN, WAGNER & HATTIS, LTD
100 SOUTH WACKER DRIVE
CHICAGO, IL. 60606
Assignment: 2
Reel/Frame:
013727/0410Recorded: 02/06/2003Pages: 42
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
06/30/1999
Assignee:
270 PARK AVENUE
NEW YORK, NEW YORK 10017
Correspondent:
FEDERAL RESEARCH CORPORATION
PENELOPE AGADOA
1030 FIFTEENTH STREET, NW
WASHINGTON, DC 20005
Assignment: 3
Reel/Frame:
010272/0972Recorded: 10/04/1999Pages: 7
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
09/10/1999
Assignee:
1151 MAPLEWOOD DRIVE
ITASCA, ILLINOIS 60143
Correspondent:
KIRKLAND & ELLIS
TIM J. SCHMUCKAL, ESQ.
200 EAST RANDOLPH DRIVE
SUITE 5300
CHICAGO, ILLINOIS 60601

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