US2467026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electric locomotives
Assignee: BBC Brown Boveri AG Germany
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Filing: 1945-03-23
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Granted: 1949-04-12
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Expires: 1965-03-23
Abstract
No abstract record available.
Inventors
- 👤 Giger Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:04
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/10; B60L15/12; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1476703A
Cited
US1683175A
Cited
US1847688A
Cited
DE445400C
Cited
US1766510A
Cited
US1851902A
Cited
US2029634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |