US2494320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for operating gas turbine plants
Assignee: Sulzer AG
•
Filing: 1946-03-15
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Granted: 1950-01-10
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Expires: 1966-03-15
Abstract
No abstract record available.
Inventors
- 👤 Traupel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/18; F02C9/00; F02C9/26; F02C9/28; F05; F05D; F05D2270/00; F05D2270/30; F05D2270/301
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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |