Patent US2491200A successfully refreshed from Google Patents.
US2491200A
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US
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Turbine driven locomotive apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1946-08-13
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Granted: 1949-12-13
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Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 John S Newton
- 👤 Thomas J Putz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:30
CPC Classifications
F; F01; F01K; F01K15/00; F01K15/02; F01K15/025; B; B61; B61C; B61C9/00; B61C9/08; B61C9/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908662A
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US1295644A
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US1648875A
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US1878312A
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US2118814A
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US2298309A
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US2464357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |