Patent US2531178A successfully refreshed from Google Patents.
US2531178A
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US
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Frame structure for turbinegenerator prime movers
Assignee: General Electric Co
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Filing: 1949-09-08
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Granted: 1950-11-21
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Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Francis H Van Nest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:29
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/28; F16; F16M; F16M1/00; F16M1/04
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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |