Patent US2521070A successfully refreshed from Google Patents.
US2521070A
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US
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Oscillation generator
Assignee: Bendix Aviation Corp
•
Filing: 1946-05-31
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Granted: 1950-09-05
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Expires: 1966-05-31
Abstract
No abstract record available.
Inventors
- 👤 Lindner Ralph Vernon
- 👤 Robert B Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:26
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/06; H03J7/065; H03J7/042; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847160A
Cited
US1931873A
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US2166805A
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US2096881A
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US2121735A
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US2147509A
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US2210781A
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US2177713A
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US2230588A
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US2207934A
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US2280139A
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US2369663A
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US2425922A
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US2407863A
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US2406125A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |