US2477683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air and combustion gas flow in turbine power plant
Assignee: TURBO ENGINEERING Corp
•
Filing: 1942-09-30
•
Granted: 1949-08-02
•
Expires: 1962-09-30
Abstract
No abstract record available.
Inventors
- 👤 Birmann Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:20
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/08; F02C3/09; F02C3/045; F02C3/05
Claims Analysis
Total Claims: 0
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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) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |