US3228030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded antenna
Assignee: General Dynamics Corp
•
Filing: 1965-06-11
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Granted: 1966-01-04
•
Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 David J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/38; H01Q1/27; H01Q1/273; H01Q13/00; H01Q13/10; H01Q13/106; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A SHIELDED ANTENNA COMPRISING A THIN SHEET OF DIELECTRIC MATERIAL SANDWICHED BETWEEN A PRINTED CIRCUIT TANK COIL ON ONE SIDE AND A GROUNDED FARADAY SHIELD ON THE OTHER SIDE, AND SHIELD HAVING A T-SHAPED SLOT THEREIN.
Claim 2
Dependent Claim
36 words
A SHIELDED ANTENNA COMPRISING A THIN SHEET OF DIELECTRIC MATERIAL SANDWICHED BETWEEN A PRINTED CIRCUIT TANK COIL ON ONE SIDE AND A GROUNDED FARADAY SHIELD ON THE OTHER SIDE, AND SHIELD HAVING A T-SHAPED SLOT THEREIN.
References Cited (Backward Citations)
US2586854A
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US2654842A
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US2874276A
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US2929065A
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US3049711A
Cited
US2990547A
Cited
US3133537A
Cited
US3110030A
Cited
US3135960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |