US2731767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy aircraft and launching device therefor
Assignee: Individual
•
Filing: 1951-09-24
•
Granted: 1956-01-24
•
Expires: 1971-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1457063A
Cited
DE589369C
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DE650744C
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US984683A
Cited
US1295537A
Cited
US1708999A
Cited
US2352806A
Cited
GB621266A
Cited
US2499666A
Cited
US2687267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |