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US2659005A
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Microwave antenna
Assignee: National Research Council Canada
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Filing: 1951-03-21
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Granted: 1953-11-10
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Expires: 1971-03-21
Abstract
No abstract record available.
Inventors
- 👤 Gruenberg Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:31
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2433368A
Cited
US2574433A
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US2470016A
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US2573746A
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US2501105A
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US2572628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |