US2417845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine construction
Assignee: RTX Corp
•
Filing: 1944-01-28
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Granted: 1947-03-25
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Expires: 1964-01-28
Abstract
No abstract record available.
Inventors
- 👤 Carl R Soderberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/26; F05; F05B; F05B2230/00; F05B2230/60; F05B2230/604; F05B2230/606; F05D; F05D2230/00; F05D2230/60; F05D2230/64; F05D2230/642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |