US2620554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing turbine blades
Assignee: Westinghouse Electric Corp
•
Filing: 1948-09-29
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Granted: 1952-12-09
•
Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Norman L Mochel
- 👤 James A Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:41
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/006; F; F01; F01D; F01D5/00; F01D5/30; F01D5/3061; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904421A
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US2384919A
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US2450493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |