US2573289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine plant with controller of stage by-pass in turbocompressor auxiliary
Assignee: Sulzer AG
•
Filing: 1945-02-16
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Granted: 1951-10-30
•
Expires: 1965-02-16
Abstract
No abstract record available.
Inventors
- 👤 Traupel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:52
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F05; F05D; F05D2270/00; F05D2270/30; F05D2270/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2493509A
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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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |