Patent US2486927A successfully refreshed from Google Patents.
US2486927A
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US
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Engine frame construction
Assignee: American Locomotive Co
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Filing: 1945-01-06
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Granted: 1949-11-01
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Expires: 1965-01-06
Abstract
No abstract record available.
Inventors
- 👤 Chapman Everett
- 👤 Barraja-Frauenfelder Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:43
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0082; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1164674A
Cited
US1814802A
Cited
US2014935A
Cited
US1968110A
Cited
US2159006A
Cited
US2246857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |