US2654832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly selective and stable wide range frequency converting circuits
Assignee: RCA Corp
•
Filing: 1948-03-26
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Granted: 1953-10-06
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Expires: 1968-03-26
Abstract
No abstract record available.
Inventors
- 👤 Harris A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR687771A
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US2206181A
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US2282092A
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US2317547A
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US2323924A
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US2408826A
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US2451291A
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US2419593A
Cited
US2447392A
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US2487857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |