US2760192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppression of vertically polarized radiation from an omnidirectional range antenna system
Assignee: Collins Radio Co
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Filing: 1954-11-16
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Granted: 1956-08-21
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Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 John P Shanklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:22
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q15/12; G; G01; G01S; G01S1/00; G01S1/02; H01Q3/00; H01Q3/12; H01Q3/14
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |