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Patent Assignment Abstract of Title
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Total Assignments: 3
Patent #:
4931019
Issue Dt:
06/05/1990
Application #:
07239258
Filing Dt:
09/01/1988
Inventor:
KYUNG T. PARK
Title:
ELECTROSTATIC IMAGE DISPLAY APPARATUS
Assignment: 1
Reel/Frame:
004934/0135Recorded: 09/01/1988Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
PARK, KYUNG T.
Exec Dt:
08/22/1988
Assignee:
PENWALT CORPORATION, 3 PARKWAY, PHILADELPHIA, PENNSYLVANIA, 19102, A CORP. OF PA
Correspondent:
SEIDEL, GONDA, LAVORGNA & MONACO
TWO PENN CENTER PLAZA, SUITE 1800
PHILADELPHIA, PA 19102
Assignment: 2
Reel/Frame:
004984/0595Recorded: 12/09/1988Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
PARK, KYUNG T.
Exec Dt:
08/22/1988
Assignee:
PENNWALT CORPORATION, A PA CORP.
PHILADELPHIA, PENNSYLVANIA
Correspondent:
SEIDEL, GONDA, LAVORGNA & MONACO
TWO PENN CENTER PLAZA, SUITE 1800
PHILADELPHIA, PA 19102
Assignment: 3
Reel/Frame:
005496/0003Recorded: 09/17/1990Pages: 18
Conveyance:
MERGER AND CHANGE OF NAME EFFECTIVE ON DECEMBER 31, 1989, IN PENNSYLVANIA
Assignors:
ATOCHEM INC., A DE CORP. (MERGED INTO)
Exec Dt:
12/31/1989
M&T CHEMICALS INC., A DE CORP. (MERGED INTO)
Exec Dt:
12/31/1989
PENNWALT CORPORATION, A PA CORP. (CHANGED TO)
Exec Dt:
12/31/1989
Assignee:
ATOCHEM NORTH AMERICA, INC., A PA CORP.
Correspondent:
ATOCHEM NORTH AMERICA, INC.
PATENT DEPARTMENT - MARY G. FAY
THREE PARKWAY
PHILADELPHIA, PA 19102

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