Patent US2743068A successfully refreshed from Google Patents.
US2743068A
Expired / Lapsed
US
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Adjustable spool type control for miniature airplane
Assignee: AMERICAN JUNIOR AIRCRAFT Co
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Filing: 1952-05-02
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Granted: 1956-04-24
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Expires: 1972-05-02
Abstract
No abstract record available.
Inventors
- 👤 Neville E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:18
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415897A
Cited
US881772A
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US1877440A
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US2406874A
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US2536875A
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US2601409A
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US2656991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |