US Patent No: 7,725,083
Number of patents in Portfolio can not be more than 2000
Antenna system for a wireless communication device
Stats
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May 25, 2010
Issued date -
Jan 5, 2000
filing date -
09/477,954
serial no -
In Force
status
Importance
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Abstract
A wireless communication device such as a cellular telephone handset is disclosed including a housing having a transceiver circuit disposed therein. An internal antenna is also disposed within the housing which is RF connected to the transceiver circuit. An external, retractable antenna is mounted on the housing and is selectively movable between a retracted position and an extended position. The external, retractable antenna is RF connected to the transceiver circuit. When the external antenna is retracted, the internal antenna functions as a primary antenna. Should the need arise, the external antenna may be extended to improve the quality of the radio signals.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,958,382 Radio transceiver apparatus for changing over between antennas | 40 | 1989 | |
| 5,109,539 Portable communication device | 71 | 1989 | |
| 5,801,661 Antenna switching circuit suitable for a radio-frequency apparatus with a built-in antenna | 13 | 1995 | |
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| 5,245,350 Retractable antenna assembly with retraction inactivation | 85 | 1992 | |
| 6,140,970 Radio antenna | 12 | 1999 | |
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| 4,862,182 Antenna for a portable radiotelephone | 28 | 1988 | |
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| 6,171,123 Electrical connector | 5 | 1998 | |
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| 5,663,692 Electrically activated RF switch accessory used with a portable radio | 2 | 1995 | |
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| 4,661,992 Switchless external antenna connector for portable radios | 26 | 1985 | |
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| 6,064,863 Constitution of protrusible external and fixed internal antenna for radio portable remote terminal device | 4 | 1997 | |
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| 6,469,669 Hybrid antenna system for a portable wireless communication device | 5 | 2000 | |
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| 6,225,951 Antenna systems having capacitively coupled internal and retractable antennas and wireless communicators incorporating same | 21 | 2000 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 25, 2013 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 25, 2017 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 25, 2021 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |