US2990545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broad-band omnidirectional spherical lens antenna with rotating amplitude modulationpattern
Assignee: ITE Circuit Breaker Co
•
Filing: 1958-06-17
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Granted: 1961-06-27
•
Expires: 1978-06-17
Abstract
No abstract record available.
Inventors
- 👤 David F Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:53
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q3/00; H01Q3/12; H01Q3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2611869A
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US2580921A
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US2576181A
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US2607009A
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US2677766A
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US2840820A
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US2803821A
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US2820221A
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US2881431A
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US2866971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |