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Patent US2147360A successfully refreshed from Google Patents.
US2147360A
Expired / Lapsed
US
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Airplane control apparatus
Assignee: ZAP DEV CORP
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Filing: 1933-02-16
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Granted: 1939-02-14
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Expires: 1953-02-16
Abstract
No abstract record available.
Inventors
- 👤 Edward F Zaparka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:07
CPC Classifications
B; B64; B64C; B64C9/00; B64C3/00; B64C3/38; B64C3/54; B64C9/14; B64C9/16; B64C9/18; B64C2009/005; Y; Y02; Y02T; Y02T50/00; Y02T50/10; Y02T50/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-02-13 | 1942-08-15 | 1943-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-13 | 1946-08-15 | 1947-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-13 | 1950-08-15 | 1951-02-14 | $7700.00 | Window Closed / Lapsed |