Patent US2444479A successfully refreshed from Google Patents.
US2444479A
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US
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Frequency-modulated pulse generator
Assignee: RCA Corp
•
Filing: 1944-01-08
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Granted: 1948-07-06
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Expires: 1964-01-08
Abstract
No abstract record available.
Inventors
- 👤 Trevor Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K7/00; H03K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US793649A
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US1629685A
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US1717630A
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US2027975A
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US2072962A
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US2061734A
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US2113214A
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US2266401A
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US2280707A
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US2303444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |