Patent US2903648A successfully refreshed from Google Patents.
US2903648A
Expired / Lapsed
US
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Electrical audio range sweep oscillator
Assignee: Individual
•
Filing: 1953-08-31
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Granted: 1959-09-08
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Bonner
- 👤 Flavius P Veslock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1632054A
Cited
US2287925A
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US2444084A
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US2426996A
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US2506329A
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US2455472A
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US2540478A
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US2730620A
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US2580424A
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US2662183A
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US2716218A
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US2777951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |