US2463340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial flow turbine blade structure
Assignee: Individual
•
Filing: 1945-11-15
•
Granted: 1949-03-01
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Wiberg Oscar Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:26
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; 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)
US1530249A
Cited
US1829179A
Cited
US1966104A
Cited
FR847942A
Cited
US2220420A
Cited
CH214461A
Cited
GB543985A
Cited
CH218177A
Cited
US2347034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |