US2676013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-powered miniature airplane
Assignee: AMERICAN JUNIOR AIRCRAFT Co
•
Filing: 1951-07-23
•
Granted: 1954-04-20
•
Expires: 1971-07-23
Abstract
No abstract record available.
Inventors
- 👤 Neville E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305842A
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US1450282A
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US1497555A
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US1541707A
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US1796157A
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DE723043C
Cited
US2364233A
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US2406874A
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US2426259A
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US2484468A
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US2559049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |