Patent US2985953A successfully refreshed from Google Patents.
US2985953A
Expired / Lapsed
US
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Manufacture of blades of internal combustion turbine engines
Assignee: Rolls Royce PLC
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Filing: 1958-11-21
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Granted: 1961-05-30
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Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 George O Eccles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:14
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21C23/16; 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
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US2047555A
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GB569514A
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US2389876A
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GB664614A
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US2799918A
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GB775610A
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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |