Patent US2933699A successfully refreshed from Google Patents.
US2933699A
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US
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Frequency control means for monophonic tone generating oscillator
Assignee: PACIFIC MERCURY TELEVISION Manufacturing
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Filing: 1956-11-15
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Granted: 1960-04-19
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Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Don L Bonham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:35
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; Y; Y10; Y10S; Y10S84/00; Y10S84/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077552A
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US2245354A
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US2365566A
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US2539826A
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US2565490A
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US2610318A
Cited
US2649006A
Cited
US2788446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |