US2996713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial waveguide antenna
Assignee: ANTENNA ENGINEERING LAB
•
Filing: 1956-11-05
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Granted: 1961-08-15
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Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:47
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/325; H01Q1/3275; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1050583A
Cited
US1943394A
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US2063531A
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US2181327A
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US2368663A
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US2425303A
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US2418084A
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US2431124A
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US2684444A
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US2781512A
Cited
GB708799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |