US2943324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual frequency dual polarization horn antenna
Assignee: TDK Micronas GmbH
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Filing: 1957-11-01
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Granted: 1960-06-28
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Expires: 1977-11-01
Abstract
No abstract record available.
Inventors
- 👤 Sichak William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/025; H01Q13/0258; H01Q5/00; H01Q5/40; H01Q5/50; H01Q5/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |