Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 005782/0640 | |
| Pages: | 2 |
| | Recorded: | 08/01/1991 | | |
| Conveyance: | CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 05/09/1991 |
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Total properties:
4
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Patent #:
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Issue Dt:
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01/02/1990
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Application #:
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07147739
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Filing Dt:
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01/25/1988
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Title:
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COIN TELEPHONE
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Patent #:
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Issue Dt:
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03/19/1991
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Application #:
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07406806
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Filing Dt:
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09/13/1989
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Title:
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CREDIT CARD TELEPHONE
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Patent #:
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Issue Dt:
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02/02/1993
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Application #:
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07548715
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Filing Dt:
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07/06/1990
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Title:
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UNAUTHORIZED UTILITY USE MONITOR APPARATUS AND METHOD
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Patent #:
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Issue Dt:
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05/18/1993
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Application #:
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07557212
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Filing Dt:
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07/25/1990
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Title:
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FAULT LOCATION ARRANGEMENT FOR DIGITAL TRANSMISSION SYSTEMS
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Correspondence name and address
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SPENCER & FRANK
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1111 19TH ST. NW
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WASHINGTON, DC 20036
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ATTN: GEORGE H. SPENCER
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