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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
Issue Dt:
10/28/1997
Application #:
08636329
Filing Dt:
04/23/1996
Inventor:
XIAODONG ZHANG
Title:
METHOD AND APPARATUS FOR POST-COMBUSTION OF GASES DURING THE REFINING OF MOLTEN METAL
Assignment: 1
Reel/Frame:
007999/0054Recorded: 04/23/1996Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
04/12/1996
Assignee:
600 GRANT STREET
PITTSBURGH, PENNSYLVANIA 15219
Correspondent:
ARMSTRONG, WESTERMAN, HATTORI, ET AL.
JOHN R. PEGAN
SUITE 721
500 WOOD STREET
PITTSBURGH, PA 15222
Assignment: 2
Reel/Frame:
015953/0753Recorded: 11/08/2004Pages: 6
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
07/02/2001
Assignee:
600 GRANT STREET
LAW DEPARTMENT - ROOM 1500
PITTSBURGH, PENNSYLVANIA 15219
Correspondent:
DKW LAW GROUP, LLC
WILLIAM P. SMITH, ESQ.
58TH FLOOR, USX TOWER
600 GRANT STREET
PITTSBURGH, PA 15219
Assignment: 3
Reel/Frame:
015953/0740Recorded: 11/08/2004Pages: 13
Conveyance:
CONVERSION TO CORPORATION
Assignor:
Exec Dt:
12/31/2001
Assignee:
600 GRANT STREET, 15TH FLOOR
LAW DEPARTMENT - ROOM 1500
PITTSBURGH, PENNSYLVANIA 15219
Correspondent:
DKW LAW GROUP, LLC
WILLIAM P. SMITH
58TH FLOOR, USX TOWER
600 GRANT STREET
PITTSBURGH, PA 15219

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