Patent US2552073A successfully refreshed from Google Patents.
US2552073A
Expired / Lapsed
US
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Auxiliary control means for aircraft
Assignee: Consolidated Vultee Aircraft Corp
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Filing: 1947-02-14
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Granted: 1951-05-08
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Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 William I Tindall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:59
CPC Classifications
B; B64; B64C; B64C23/00; B64C23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1774474A
Cited
US2120760A
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US2252656A
Cited
US2218822A
Cited
US2271763A
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US2383102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |