US2786646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bladed rotors for axial flow turbines and similarly bladed fluid flow machines
Assignee: Power Jets Research and Development Ltd
•
Filing: 1950-07-10
•
Granted: 1957-03-26
•
Expires: 1970-07-10
Abstract
No abstract record available.
Inventors
- 👤 Grantham Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:17
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/028
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1363692A
Cited
GB141017A
Cited
US1516607A
Cited
GB235304A
Cited
US2149510A
Cited
GB576218A
Cited
US2347034A
Cited
US2405190A
Cited
GB614547A
Cited
US2501038A
Cited
US2553078A
Cited
US2618462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |