Patent US2454782A successfully refreshed from Google Patents.
US2454782A
Expired / Lapsed
US
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Adjustable expanded sweep for radar oscilloscopes
Assignee: STC PLC
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Filing: 1942-12-08
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Granted: 1948-11-30
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Expires: 1962-12-08
Abstract
No abstract record available.
Inventors
- 👤 Rosa Louis A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933219A
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US1932589A
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US2146862A
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US2227598A
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US2189549A
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US2294863A
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US2313906A
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US2368448A
Cited
US2306386A
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US2355363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |