Patent US2650985A successfully refreshed from Google Patents.
US2650985A
Expired / Lapsed
US
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Radio horn
Assignee: RCA Corp
•
Filing: 1947-09-09
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Granted: 1953-09-01
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Expires: 1967-09-09
Abstract
No abstract record available.
Inventors
- 👤 Rust Noel Meyer
- 👤 Ramsay John Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:57
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/08; H01Q13/00; H01Q13/02; H01Q15/00; H01Q15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2283935A
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FR891949A
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US2461005A
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US2369808A
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US2317464A
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US2405242A
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US2415807A
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US2401601A
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US2447768A
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US2425488A
Cited
US2442951A
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US2437281A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |