US2643086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting of turbine blades
Assignee: Armstrong Siddeley Motors Ltd
•
Filing: 1947-10-23
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Granted: 1953-06-23
•
Expires: 1967-10-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas Albert
- 👤 Fellows Leslie Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US775108A
Cited
US974160A
Cited
US2445661A
Cited
US2402418A
Cited
US2427244A
Cited
US2447942A
Cited
US2488867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |