Patent Assignment Details
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| Reel/Frame: | 004345/0157 | |
| Pages: | 2 |
| | Recorded: | 12/04/1984 | | |
| 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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07/21/1987
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Application #:
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06677974
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Filing Dt:
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12/04/1984
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Title:
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ECHO CANCELLER
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Assignee
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| A CORP OF DE |
| HOLMDEL, NEW JERSEY 07733 |
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Correspondence name and address
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JOHN P. MC DONNELL
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AT&T INFORMATION SYSTEMS, INC.
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CRAWFORDS CORNER RD.
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HOLMDEL, NJ 07733
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