US2585576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine unit for driving electric generators
Assignee: Svenska Turbinfabriks Ljungstrom AB
•
Filing: 1949-10-24
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Granted: 1952-02-12
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Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 Nicolin Curt
- 👤 Wiberg Oscar Anton
- 👤 Ostmar Frans Eric Ossian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:23
CPC Classifications
F; F01; F01D; F01D15/00; F01D15/10; F02; F02C; F02C7/00; F02C7/20
Claims Analysis
Total Claims: 0
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US2452581A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |