Patent US2713149A successfully refreshed from Google Patents.
US2713149A
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Frequency modulation circuits
Assignee: RCA Corp
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Filing: 1953-01-15
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Granted: 1955-07-12
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Expires: 1973-01-15
Abstract
No abstract record available.
Inventors
- 👤 Max H Mesner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:47
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2310260A
Cited
US2392625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |