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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
12/12/2017
Application #:
11906479
Filing Dt:
10/02/2007
Publication #:
Pub Dt:
04/17/2008
Inventors:
Qiang Yu, Weixin David Song
Title:
LIGHT WEIGHT GYPSUM BOARD
Assignment: 1
Reel/Frame:
044695/0944Recorded: 01/23/2018Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
10/31/2006
Exec Dt:
10/31/2006
Assignee:
550 WEST ADAMS STREET
CHICAGO, ILLINOIS 60661
Correspondent:
LEYDIG, VOIT & MAYER, LTD
TWO PRUDENTIAL PLAZA, SUITE 4900
180 NORTH STETSON AVENUE
CHICAGO, IL 60601-6731
Assignment: 2
Reel/Frame:
020455/0982Recorded: 02/01/2008Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
10/01/2007
Assignee:
550 W. ADAMS STREET
CHICAGO, ILLINOIS 60661
Correspondent:
GEORGE M. CARRERA, JR.
DRINKER BIDDLE & REATH LLP
191 NORTH WACKER DRIVE, SUITE 3700
CHICAGO, IL 60606

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