US2681500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing turbine or the like blades
Assignee: Bristol Aeroplane Co Ltd
•
Filing: 1950-07-03
•
Granted: 1954-06-22
•
Expires: 1970-07-03
Abstract
No abstract record available.
Inventors
- 👤 Whitehead Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255329A
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US819106A
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US1073623A
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US1286283A
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GB169913A
Cited
US1910943A
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US2373827A
Cited
US2593139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |