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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
Issue Dt:
12/03/1991
Application #:
07342849
Filing Dt:
04/24/1989
Inventors:
J. RICHARD ROBERTSON, KAI C. SU
Title:
WETTABLE, RIGID GAS PERMEABLE, SUBSTANTIALLY NON-SWELLABLE CONTACT LENS CONTAINING BLOCK COPOLYMER POLYSILOXANE-POLYOXYALKYLENE BACKBONE UNITS, AND USE THEREOF
Assignment: 1
Reel/Frame:
005642/0942Recorded: 03/25/1991Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
06/06/1989
Exec Dt:
06/06/1989
Assignee:
444 SAW MILL RIVER RD.
A CORP. OF NY
ARDSLEY, NEW YORK
Correspondent:
LUTHER A.R. HALL
CIBA-GEIGY CORPORATION
7 SKYLINE DR.
HAWTHORNE, NY 10532-2188

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