US2628688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade retention means with increased stiffness
Assignee: RTX Corp
•
Filing: 1950-02-08
•
Granted: 1953-02-17
•
Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 William E Diefenderfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04; B64C11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206505A
Cited
US1801511A
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US2030953A
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US2107785A
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US2269684A
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US2460910A
Cited
US2491375A
Cited
US2514477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |