Patent US2489312A successfully refreshed from Google Patents.
US2489312A
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Oscilloscope sweep circuit
Assignee: United States, WAR, Secretary of
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Filing: 1944-01-04
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Granted: 1949-11-29
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Expires: 1964-01-04
Abstract
No abstract record available.
Inventors
- 👤 Humbert P Pacini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/12; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075140A
Cited
US2129036A
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US2100700A
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GB426201A
Cited
US2052183A
Cited
US2102951A
Cited
US2241256A
Cited
US2281948A
Cited
US2282340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |