Patent US2689911A successfully refreshed from Google Patents.
US2689911A
Expired / Lapsed
US
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Sweep voltage generator
Assignee: United States Department of the Navy
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Filing: 1946-09-24
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Granted: 1954-09-21
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Expires: 1966-09-24
Abstract
No abstract record available.
Inventors
- 👤 Howard P Stabler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/46; G01S13/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937021A
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US2085556A
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US2113011A
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US2241256A
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US2284873A
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US2275460A
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US2520141A
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US2413440A
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US2438950A
Cited
US2496338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |