US2972182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine and compressor blades
Assignee: Rolls Royce PLC
•
Filing: 1958-02-11
•
Granted: 1961-02-21
•
Expires: 1978-02-11
Abstract
No abstract record available.
Inventors
- 👤 Kent Nelson Hector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:48
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339; Y10T29/49341; Y10T29/4981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2013622A
Cited
US2047555A
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US2628417A
Cited
US2751988A
Cited
GB745655A
Cited
GB763141A
Cited
GB755610A
Cited
US2836884A
Cited
US2830357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |