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US2512147A
Expired / Lapsed
US
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Antenna
Assignee: United States, WAR, Secretary of
•
Filing: 1945-03-22
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Granted: 1950-06-20
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Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 John H Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:17
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155821A
Cited
US2287533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |