US2930579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine guide vane locking and vibration preventing arrangement
Assignee: Library and Archives Canada
•
Filing: 1955-09-19
•
Granted: 1960-03-29
•
Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Boyd
- 👤 John C Mckean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:41
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; Y; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733853A
Cited
US2300766A
Cited
US2412365A
Cited
US2372518A
Cited
US2660121A
Cited
GB728815A
Cited
GB736032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |