US2689107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damper for blades and vanes
Assignee: RTX Corp
•
Filing: 1949-08-13
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Granted: 1954-09-14
•
Expires: 1969-08-13
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Odegaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:31
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/16; F05; F05D; F05D2230/00; F05D2230/50; F05D2230/54; F05D2250/00; F05D2250/10; F05D2250/18; F05D2250/182; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US925031A
Cited
US1363692A
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US1434414A
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US1765079A
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US1833754A
Cited
GB438036A
Cited
FR891635A
Cited
GB602530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |