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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
Issue Dt:
01/10/1989
Application #:
07160187
Filing Dt:
02/25/1988
Inventor:
WAYNE P. SCHAMMEL
Title:
TRIMELLITIC ANHYDRIDE PURIFICATION PROCESS
Assignment: 1
Reel/Frame:
004847/0656Recorded: 04/07/1988Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/23/1988
Assignee:
A CORP. OF DE
CHICAGO, ILLINOIS
Correspondent:
AMOCO CORPORATION
PATENTS AND LICENSING DEPARTMENT
200 E. RANDOLPH
CHICAGO, IL 60601
Assignment: 2
Reel/Frame:
014043/0575Recorded: 10/14/2003Pages: 5
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/31/1998
Assignee:
4101 WINFIELD ROAD
BP LEGAL, MAIL CODE 5EAST
WARRENVILLE, ILLINOIS 60555
Correspondent:
BP AMERICA INC.
MARY JO KANADY
BP LEGAL, MAIL CODE 5EAST
4101 WINFIELD ROAD
WARRENVILLE, IL 60555
Assignment: 3
Reel/Frame:
014051/0238Recorded: 10/15/2003Pages: 6
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
05/01/2001
Assignee:
4101 WINFIELD ROAD
MAIL CODE 5EAST, BP LEGAL
WARRENVILLE, ILLINOIS 60555
Correspondent:
BP AMERICA INC.
MARY JO KANADY
4101 WINFIELD ROAD, DOCKET, BP LEGAL
BP LEGAL, MAIL CODE 5EAST
WARRENVILLE, IL 60555
Assignment: 4
Reel/Frame:
014913/0169Recorded: 07/29/2004Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
07/28/2004
Assignee:
CORSO ELVEZIA 23
LUGANO, SWITZERLAND CH-6900
Correspondent:
CAROL A. WILSON
4101 WINFIELD ROAD
MAIL CODE 5 EAST
WARRENVILLE, IL 60555

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