US2478313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna construction
Assignee: RCA Corp
•
Filing: 1945-07-19
•
Granted: 1949-08-09
•
Expires: 1965-07-19
Abstract
No abstract record available.
Inventors
- 👤 Harold O Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2304210A
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US2249963A
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US2350916A
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US2407057A
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US2348919A
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US2411034A
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US2412867A
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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) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |