US2727291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft catapult holdback and release unit
Assignee: Individual
•
Filing: 1953-04-28
•
Granted: 1955-12-20
•
Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Hamblin Donald Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:28
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/04; B64F1/06; F; F16; F16B; F16B45/00; F16B45/04; F16B45/045; F16B45/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US71681A
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US2486418A
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US1242809A
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DE325690C
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US1375605A
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US1557141A
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US1859488A
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US1963634A
Cited
US2413392A
Cited
US2410816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |