US2704129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade retention for aircraft propeller
Assignee: Curtiss Wright Corp
•
Filing: 1951-03-23
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Granted: 1955-03-15
•
Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 Maurice E Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:44
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; B64C11/06; F; F16; F16C; F16C19/00; F16C19/54; F16C19/546; F16C19/547; F16C19/56; F16C2326/00; F16C2326/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB486614A
Cited
US2248590A
Cited
GB546510A
Cited
US2515996A
Cited
US2476638A
Cited
US2438542A
Cited
US2566884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |