Patent US2514525A successfully refreshed from Google Patents.
US2514525A
Expired / Lapsed
US
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Method of producing blade constructions and propeller blades
Assignee: Curtiss Wright Corp
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Filing: 1944-12-23
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Granted: 1950-07-11
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Expires: 1964-12-23
Abstract
No abstract record available.
Inventors
- 👤 Foster B Stulen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:40
CPC Classifications
B; B23; B23K; B23K28/00; B23K28/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49332; Y10T29/49334
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806539A
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US928701A
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US1461866A
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US1937966A
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US2007775A
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GB417232A
Cited
US2210277A
Cited
US2235032A
Cited
US2214339A
Cited
US2427785A
Cited
US2457202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |