Patent US2484141A successfully refreshed from Google Patents.
US2484141A
Expired / Lapsed
US
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Skin stressed laminated fiberglas rotor blade
Assignee: RTX Corp
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Filing: 1947-01-09
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Granted: 1949-10-11
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Expires: 1967-01-09
Abstract
No abstract record available.
Inventors
- 👤 Alex Ralph Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:45
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/46; B64C27/473; B64C2027/4733; B64C2027/4736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1507143A
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US1999136A
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US2067228A
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US2155375A
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US2272439A
Cited
US2377846A
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US2400649A
Cited
US2412908A
Cited
US2414125A
Cited
US2381631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |