Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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07/14/1992
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Application #:
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07439628
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Filing Dt:
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11/21/1989
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Inventors:
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JOHN A. FUTHEY, WILLIAM B. ISAACSON, MICHAEL J. SIMPSON
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Title:
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MULTI-FOCAL DIFFRACTIVE OPHTHALMIC LENSES
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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A CORP. OF DE |
SAINT PAUL, MINNESOTA |
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STEPHEN W. BUCKINGHAM |
OFFICE OF PATENT COUNSEL/3M |
P.O. BOX 33427 |
ST. PAUL, MN 55133-3427 |
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