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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
04/02/1974
Application #:
05276883
Filing Dt:
07/31/1972
Inventors:
*** EXPO DATA IS NOT AVAILABLE FOR THIS RECORD ***
Title:
DISPLACEABLE DIAPHRAGM STRUCTURES FOR USE IN SEISMIC IMPULSE TRANSMISS ION
Assignment: 1
Reel/Frame:
003929/0064Recorded: 11/23/1981Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
12/05/1980
Assignee:
MICHIGAN
Correspondent:
RICHARD G. WATERMAN
P. O. BOX 1967
MIDLAND, MI 48640
Assignment: 2
Reel/Frame:
004960/0921Recorded: 10/18/1988Pages: 12
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
10/12/1988
Assignee:
Correspondent:
SCHATZ & SCHATZ, RIBICOFF, & KOTKIN
100 FAIRFIELD AVENUE
BRIDGEPORT, CT 06604-4278
Assignment: 3
Reel/Frame:
006652/0074Recorded: 08/05/1993Pages: 11
Conveyance:
TERMINATION AGREEMENT
Assignor:
Exec Dt:
07/20/1993
Assignee:
FOUR DUKE PLACE
NORWALK, CONNECTICUT
Correspondent:
MEREDITH A. PARSONS
GOLDBERG, KOHN, BELL, BLACK, ROSENBLOOM
& MORITZ, LTD.
55 EAST MONROE STREET, SUITE 3900
CHICAGO, IL 60603

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