Patent Assignment Details
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| Reel/Frame: | 013484/0839 | |
| Pages: | 4 |
| | Recorded: | 11/18/2002 | | |
| Conveyance: | CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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12/26/1989
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Application #:
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07301347
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Filing Dt:
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01/23/1989
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Title:
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AUTOMATIC VALIDATION OF TELEPHONE ACCOUNT NUMBERS
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Assignee
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| 2155 CHENAULT, SUITE 410 |
| CARROLLTON, TEXAS 75006-5023 |
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Correspondence name and address
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FENWICK & WEST LLP
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MICHAEL BLUM, ESQ.
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TWO PALO ALTO SQUARE
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PALO ALTO, CA 94306
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