US5264858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass antenna for a telephone of an automobile
Assignee: AGC Inc
•
Filing: 1992-08-14
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Granted: 1993-11-23
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Expires: 2012-08-14
Abstract
Abstract A glass antenna for a telephone of an automobile which comprises a main antenna conductor composed of a plurality of conductive strips extended radially from a junction, the outline shape of which is substantially a triangle or a sector. An insular earth conductor is disposed opposing the junction of the main antenna conductor and is disconnected with the main antenna conductor with respect to direct current. Power feeding terminals are provided on the main antenna conductor and the insular earth conductor and at least one set of the main antenna conductor and the insular earth conductor are formed at a predetermined position of a glass plate.
Inventors
- 👤 Masaru Shiina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:37
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/44; H01Q1/00; H01Q1/12; H01Q1/1271
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A glass antenna for a telephone of an automobile which comprises: a planar main antenna conductor having an overall outline shape which is substantially a diamond having a junction; an insular earth conductor having a shape of a trapezoid which is disposed opposing the junction of the main antenna conductor and is disconnected with the main antenna conductor with respect to direct current; and power feeding terminals provided on the main antenna conductor and the insular earth conductor; wherein both of the main antenna conductor and the insular earth conductor are formed at predetermined positions in a glass plate.
Claim 2
Dependent Claim
99 words
A glass antenna for a telephone of an automobile which comprises: a planar main antenna conductor having an overall outline shape which is substantially a diamond having a junction; an insular earth conductor having a shape of a trapezoid which is disposed opposing the junction of the main antenna conductor and is disconnected with the main antenna conductor with respect to direct current; and power feeding terminals provided on the main antenna conductor and the insular earth conductor; wherein both of the main antenna conductor and the insular earth conductor are formed at predetermined positions in a glass plate.
Claim 3
Dependent Claim
42 words
A glass antenna for a telephone of an automobile according to claim 1, wherein in the insular earth conductor having a shape of a trapezoid, an angle between a base and a side of the trapezoid is in a range of 45°-85°.
References Cited (Backward Citations)
US4757322A
Cited
JPS61171202A
Cited
JPS6243905A
Cited
JPS62193304A
Cited
WO1988009569A1
Cited
US5017933A
Cited
US5029308A
Cited
DE3824417A1
Cited
US5049892A
Cited
US5097270A
Cited
US5095314A
Cited
US5083135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |