US3810184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated windshield with built-in antenna
Assignee: Pilkington North America Inc
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Filing: 1972-02-17
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Granted: 1974-05-07
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Expires: 1992-02-17
Abstract
Abstract An automobile windshield of laminated glass having an indentation in the lower edge of one of the glass sheets, an antenna carried by the plastic interlayer and made up of fine wire elements that include horizontally extending elements and vertical elements that extend from the horizontal elements toward the bottom of the windshield, and a tinned metal plate also carried by the interlayer in alignment with the indentation in the glass sheet for connecting the antenna to the car radio.
Inventors
- 👤 J Boicey
- 👤 P Mattimore
- 👤 O Schmoeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:50
CPC Classifications
B; B60; B60J; B60J1/00; B60J1/02; H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1271
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
In an automobile windshield including two sheets of glass and a layer of plastic interposed between and heat and pressure laminated together with said glass sheets; a radio antenna circuit secured at and along a surface of one of said glass sheets and comprising an elongated substantially horizontal line of conducting material adjacent and extending substantially parallel with the top of said windshield, and a substantially vertical line of conducting material extending downwardly from said horizontal line between the ends of said windshield and terminating adjacent the bottom thereof in an enlarged area of conducting material which provides a connecting tab for said antenna circuit; with said layer of plastic securing said circuit along said glass surface, one of said sheets of glass having a notch in an edge thereof, and said notch being in alignment with said connecting tab.
Claim 2
Dependent Claim
140 words
In an automobile windshield including two sheets of glass and a layer of plastic interposed between and heat and pressure laminated together with said glass sheets; a radio antenna circuit secured at and along a surface of one of said glass sheets and comprising an elongated substantially horizontal line of conducting material adjacent and extending substantially parallel with the top of said windshield, and a substantially vertical line of conducting material extending downwardly from said horizontal line between the ends of said windshield and terminating adjacent the bottom thereof in an enlarged area of conducting material which provides a connecting tab for said antenna circuit; with said layer of plastic securing said circuit along said glass surface, one of said sheets of glass having a notch in an edge thereof, and said notch being in alignment with said connecting tab.
Claim 3
Dependent Claim
64 words
A windshield structure as defined in claim 1 in which said lines are wires, said enlarged area of conducting material is a flat metal plate, one of said sheets of glass has a notch in an edge thereof, said circuit is carried by said plastic sheet on the side thereof facing said notched sheet, and said notch is in alignment with said flat plate.
Claim 4
Dependent Claim
56 words
A windshield structure as defined in claim 2 in which said plate is tinned, said vertical wire is welded to said plate, said connection facilitating element is a lead wire carrying a plug type connector at its free end, said lead wire is soldered to said plate, and said notch is filled with a sealing material.
Claim 5
Dependent Claim
52 words
A structure as defined in claim 2 in which said horizontal and vertical wires are darkened to reduce visibility and light reflectance and arranged to form a pattern composed of two inverted ''''L'''' shapes arranged back to back and the lower ends of said vertical wires are welded to said metal plate.
Claim 6
Dependent Claim
18 words
A structure as defined in claim 4 in which said wires are coated with a pigmented plastic material.
Claim 7
Dependent Claim
26 words
A structure as defined in claim 5 in which said wires are provided with superimposed coatings of a pigmented plastic and a clear plastic material respectively.
Claim 8
Dependent Claim
42 words
A structure as defined in claim 6 in which the plastic of the coating material is a polyvinyl formal resin, the pigment is carbon, and said clear plastic coating material has an index of refraction substantially matching that of said plastic interlayer.
References Cited (Backward Citations)
GB517361A
Cited
DE1134802B
Cited
DE1196330B
Cited
US3440408A
Cited
US3414902A
Cited
US3576576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |