Patent US3456162A successfully refreshed from Google Patents.
US3456162A
Expired / Lapsed
US
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Electronic device for separating voice from frequency control signals
Assignee: World Wide Electronics Inc
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Filing: 1966-09-30
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Granted: 1969-07-15
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 James J Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:50
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/44; H04B1/46; H04M; H04M1/00; H04M1/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2513342A
Cited
US2762922A
Cited
US2780724A
Cited
US3133992A
Cited
US3168738A
Cited
US3339117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |