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Patent Assignment Abstract of Title
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Total Assignments: 7
Patent #:
Issue Dt:
03/20/1990
Application #:
07233359
Filing Dt:
08/18/1988
Inventor:
DAVID E. SISK
Title:
DUST FILTERING AND COLLECTION SYSTEM
Assignment: 1
Reel/Frame:
005029/0822Recorded: 03/07/1989Pages: 21
Conveyance:
LICENSE (SEE DOCUMENT FOR DETAILS). SUBJECT TO LICENSE RECITED FEBRUARY 28, 1989
Assignor:
Exec Dt:
02/28/1989
Assignees:
Correspondent:
WINSTON & STRAWN
STE. 500
2550 M STREET, N.W.
WASHINGTON, DC 20037
Assignment: 2
Reel/Frame:
005046/0475Recorded: 03/20/1989Pages: 27
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
02/28/1989
Assignee:
Correspondent:
ALSTON & BIRD
ONE ATLANTIC CENTER
1201 WEST PEACHTREE ST.
ATLANTA, GA 30309-3424
Assignment: 3
Reel/Frame:
005811/0527Recorded: 03/01/1991Pages: 46
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/20/1990
Assignee:
MINNEAPOLIS, MINNESOTA
Correspondent:
WINTHROP & WEINSTINE
3200 MINNESOTA WORLD TRADE CENTER
30 EAST SEVENTH STREET
SAINT PAUL, MN 55101
ATTN: JULIE K. WILLIAMSON
Assignment: 4
Reel/Frame:
005587/0173Recorded: 01/10/1991Pages: 5
Conveyance:
RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). SECURITY AGREEMENT RECORDED AT REEL 5046 FRAME 0475
Assignor:
Exec Dt:
12/21/1990
Assignee:
Correspondent:
WINSTON & STRAWN
1400 L STREET, N.W.
WASHINGTON, DC 20005-3502
Assignment: 5
Reel/Frame:
007838/0937Recorded: 03/13/1996Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
01/25/1996
Assignee:
SUITE 120
2300 NORTH BARRINGTON ROAD
HOFFMAN ESTATES, ILLINOIS 60195
Correspondent:
SENNIGER, POWERS, LEAVITT & ROEDEL
DAVID E. CRAWFORD, JR.
ONE METROPOLITAN SQUARE
16TH FLOOR
ST. LOUIS, MO 63102
Assignment: 6
Reel/Frame:
016283/0397Recorded: 12/03/2004Pages: 3
Conveyance:
RELEASE AND TERMINATION OF SECURITY INTEREST
Assignor:
Exec Dt:
11/30/2004
Assignee:
2300 NORTH BARRINGTON ROAD
HOFFMAN ESTATES, ILLINOIS 60195
Correspondent:
WEL, GUTSHALL & MANGES LLP
ATT: JAMES ENGLISH
200 CRESCENT COURT
SUITE 310
DALLAS, TEXAS 75201
Assignment: 7
Reel/Frame:
016610/0025Recorded: 12/03/2004Pages: 4
Conveyance:
RELEASE AND TERMINATION OF SECURITY INTEREST
Assignor:
Exec Dt:
11/30/2004
Assignee:
2300 NORTH
BARRINGTON ROAD
HOFFMAN ESTATES, ILLINOIS 60195
Correspondent:
WEIL, GOTSUM + MANGES LLP
ATTN: JAMES ENGLISH
200 CRESCENT COURT
SUITE 300
DALLAS, TEXAS 75201

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