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US2770801A
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Corner reflector type antenna
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1952-07-23
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Granted: 1956-11-13
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Expires: 1972-07-23
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:49
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/286; H01Q1/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636987A
Cited
US2203807A
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US2629051A
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US2583953A
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US2594839A
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US2518843A
Cited
US2631237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |