US2561291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadable aircraft
Assignee: Individual
•
Filing: 1947-06-26
•
Granted: 1951-07-17
•
Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Scott C Rethorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:17
CPC Classifications
B; B64; B64C; B64C37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE367036C
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AT100274B
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US1761053A
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US1980246A
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US2108093A
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US2181574A
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US2294367A
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US2431293A
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US2446480A
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US2402118A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |