US2415104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine for aircraft
Assignee: RTX Corp
•
Filing: 1943-05-11
•
Granted: 1947-02-04
•
Expires: 1963-05-11
Abstract
No abstract record available.
Inventors
- 👤 Walter A Ledwith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:10
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/28; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT76744B
Cited
US1554230A
Cited
US1723012A
Cited
GB369680A
Cited
US1985964A
Cited
US2232611A
Cited
US2282894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |