Patent US2788520A successfully refreshed from Google Patents.
US2788520A
Expired / Lapsed
US
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Tuning assembly for a radar system
Assignee: Individual
•
Filing: 1946-04-11
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Granted: 1957-04-09
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Expires: 1966-04-11
Abstract
No abstract record available.
Inventors
- 👤 David L Arenberg
- 👤 Alfred G Emslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:10
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2407294A
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US2433681A
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US2460827A
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US2421016A
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US2485583A
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US2420211A
Cited
US2505525A
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US2532546A
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US2532539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |