Patent US2644533A successfully refreshed from Google Patents.
US2644533A
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Means for steering aircraft with rotary wings
Assignee: CONST AERONAUTIQUES DES SUD OU
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Filing: 1948-03-30
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Granted: 1953-07-07
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Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Maillard Francis
- 👤 Laville Andre
- 👤 Cantinieau Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:31
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/16; B64C27/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1669758A
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US1673232A
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US1893395A
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US1994488A
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US2084464A
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US2330056A
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US2337570A
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US2429646A
Cited
US2394513A
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US2472917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |