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US2672202A
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US
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Aircraft sustaining rotor blade damping system
Assignee: Autogiro Company of America
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Filing: 1947-07-03
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Granted: 1954-03-16
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Expires: 1967-07-03
Abstract
No abstract record available.
Inventors
- 👤 Pullin Cyril George
- 👤 Shapiro Jacob Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:01
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1682893A
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US1948458A
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US1905776A
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US1884905A
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US1899096A
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US2192492A
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US2250826A
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US2318260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |