Patent US2646565A successfully refreshed from Google Patents.
US2646565A
Expired / Lapsed
US
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Cathode-ray tube sweep circuit
Assignee: United States Department of the Navy
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Filing: 1945-09-18
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Granted: 1953-07-21
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Expires: 1965-09-18
Abstract
No abstract record available.
Inventors
- 👤 Volney C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:01
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/12; G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G01S7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2295412A
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US2403967A
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US2313966A
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US2471516A
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US2400791A
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US2412291A
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US2421747A
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US2466712A
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US2421312A
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US2444330A
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US2437275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |