Patent Assignment Details
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Reel/Frame: | 004742/0734 | |
| Pages: | 1 |
| | Recorded: | 08/03/1987 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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08/22/1989
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Application #:
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07058066
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Filing Dt:
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06/04/1987
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Title:
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ETCHING OF COPPER AND COPPER BEARING ALLOYS
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Assignee
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THREE PARKWAY |
PHILADELPHIA, PENNSYLVANIA |
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Correspondence name and address
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E. LEIGH HUNT
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PENNWALT CORP.
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PATENT DEPT.
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THREE PARKWAY
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PHILADELPHIA, PA 19102
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