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US2801074A
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US
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Blade retaining means
Assignee: RTX Corp
•
Filing: 1952-10-01
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Granted: 1957-07-30
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 William H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:42
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/32; F01D5/323; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE500250A
Cited
GB190815893A
Cited
US1619133A
Cited
US1871684A
Cited
US2172924A
Cited
GB620877A
Cited
US2620539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |