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Patent US2579882A successfully refreshed from Google Patents.
US2579882A
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US
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Interference suppression in radio signaling systems
Assignee: RCA Corp
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Filing: 1947-06-05
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Granted: 1951-12-25
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Expires: 1967-06-05
Abstract
No abstract record available.
Inventors
- 👤 Leland E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:30
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2118610A
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US2175367A
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US2283575A
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US2298409A
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US2390641A
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US2416336A
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US2429504A
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US2448055A
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US2481516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |