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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
11/10/1987
Application #:
06853341
Filing Dt:
04/17/1986
Inventor:
RICHARD A. HAYES
Title:
POLYIMIDE GAS SEPARATION MEMBRANES
Assignment: 1
Reel/Frame:
004557/0911Recorded: 06/11/1986Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
02/19/1986
Assignee:
A CORP. OF DE.
WILMINGTON, DELAWARE
Correspondent:
FRANK C. HILBERG, JR.
LEGAL DEPT.
E. I. DU PONT DE NEMOURS & CO.
WILMINGTON, DE 19898
Assignment: 2
Reel/Frame:
007232/0244Recorded: 12/08/1994Pages: 2
Conveyance:
ASSIGNOR ASSIGNS A 1/2 INTEREST TO ASSIGNEE.
Assignor:
Exec Dt:
12/01/1994
Assignee:
75, QUAI D'ORSAY
75321 PARIS CEDEX 07,, FRANCE
Correspondent:
JAMES A. FORSTNER
E.I. DU PONT DE NEMOURS COMPANY
1007 MARKET STREET
WILMINGTON, DE 19898

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