Patent Assignment Details
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| Reel/Frame: | 005840/0372 | |
| Pages: | 3 |
| | Recorded: | 09/05/1991 | | |
| 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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07/26/1994
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Application #:
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07755465
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Filing Dt:
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09/05/1991
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Title:
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TELECOMMUNICATION CALL BILLING METHOD AND APPARATUS
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Assignee
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| 550 MADISON AVENUE |
| NEW YORK, NEW YORK 10022-3201 |
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Correspondence name and address
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JOHN A. CACCURO
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AT&T BELL LABORATORIES
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600 MOUNTAIN AVENUE (ROOM 3C-512)
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P.O. BOX 636
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MURRAY HILL, NEW JERSEY 07974-0636
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