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US2495604A
Expired / Lapsed
US
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Method of and apparatus for control of thermal power plants of the closed circuit type
Assignee: Aktiengesellschaft fuer Technische Studien
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Filing: 1945-02-07
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Granted: 1950-01-24
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Expires: 1965-02-07
Abstract
No abstract record available.
Inventors
- 👤 Salzmann Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
F; F02; F02C; F02C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190222568A
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US1666438A
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US1777458A
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US1807173A
Cited
US2172910A
Cited
US2203731A
Cited
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Cited
US2351079A
Cited
US2319995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |