US2648769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide angle radiation antenna
Assignee: RCA Corp
•
Filing: 1949-06-28
•
Granted: 1953-08-11
•
Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Masters Robert Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:12
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10; H01Q13/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2433368A
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US2414266A
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US2407068A
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US2435988A
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US2480154A
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US2480153A
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US2480155A
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US2487622A
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US2511931A
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US2510290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |