Patent US2758202A successfully refreshed from Google Patents.
US2758202A
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Frequency modulation system
Assignee: PADEVCO Inc
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Filing: 1950-07-12
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Granted: 1956-08-07
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Expires: 1970-07-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Wilmotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:33
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/12; H; H03; H03C; H03C3/00; H03C3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1607158A
Cited
US1450966A
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US1629685A
Cited
US2379720A
Cited
US2378013A
Cited
US2479305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |