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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06/11/1991
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Application #:
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07361891
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Filing Dt:
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06/05/1989
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Inventors:
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WILLIAM F. PORTER, MICHAEL G. MASTROGANY
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Title:
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WET END CORRUGATING OF ACOUSTICAL TILE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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101 SOUTH WACKER DRIVE |
A CORP. OF DELAWARE |
CHICAGO, ILLINOIS 60606 |
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ROBERT H. ROBINSON |
DEPARTMENT #157 |
USG CORPORATION |
101 SOUTH WACKER DRIVE |
CHICAGO, IL 60606-4385 |
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