US2438542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller blade, bearing, and seal assembly
Assignee: Curtiss Wright Corp
•
Filing: 1944-09-07
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Granted: 1948-03-30
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Expires: 1964-09-07
Abstract
No abstract record available.
Inventors
- 👤 Maurice E Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/46; F16C33/54; B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; B64C11/06; F16C19/00; F16C19/22; F16C19/30; F16C33/51; F16C33/513; F16C33/516; F16C33/58; F16C33/60; F16C19/34; F16C19/36; F16C19/364; F16C19/54; F16C2300/00; F16C2300/10; F16C2300/14; F16C2326/00; F16C2326/43; F16C33/72; F16C33/76; F16C33/78; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/4968
Claims Analysis
Total Claims: 0
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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) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |