Patent US2433432A successfully refreshed from Google Patents.
US2433432A
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US
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Propeller synchronizing apparatus
Assignee: Curtiss Wright Corp
•
Filing: 1941-05-14
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Granted: 1947-12-30
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Expires: 1961-05-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Chillson
- 👤 George W Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:44
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1553406A
Cited
US1553407A
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US1553408A
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US1515227A
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US2076202A
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US2112251A
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US2151127A
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US2144429A
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US2217856A
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US2220080A
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US2231439A
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US2252518A
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US2251388A
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US2246516A
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US2232753A
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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) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |