US2519293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starting control system and switch
Assignee: Westinghouse Electric Corp
•
Filing: 1945-05-07
•
Granted: 1950-08-15
•
Expires: 1965-05-07
Abstract
No abstract record available.
Inventors
- 👤 Schaelchlin Walter
- 👤 Mahnke Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:55
CPC Classifications
F; F02; F02N; F02N11/00; F02N11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1281827A
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US733564A
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US1487693A
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US1757486A
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US1993633A
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US1964467A
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US2086197A
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US2293968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |