US2828413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained antenna-radio system in which a split conductive container forms a dipole antenna
Assignee: AT&T Inc
•
Filing: 1956-06-21
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Granted: 1958-03-25
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Fritz K Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/44; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/243; H01Q9/00; H01Q9/04; H01Q9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2272839A
Cited
GB585791A
Cited
GB585792A
Cited
US2513157A
Cited
US2521423A
Cited
US2632849A
Cited
US2619589A
Cited
US2714625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |