US2512402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locomotive control system
Assignee: Westinghouse Electric Corp
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Filing: 1947-02-05
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Granted: 1950-06-20
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Expires: 1967-02-05
Abstract
No abstract record available.
Inventors
- 👤 Charles C Whittaker
- 👤 William H Eunson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:57
CPC Classifications
B; B60; B60L; B60L9/00; B60L9/16; B60L9/24; B60L9/26; B60L2200/00; B60L2200/26
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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |