US2539190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electricallyoperated vehicles
Assignee: Westinghouse Electric Corp
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Filing: 1949-04-19
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Granted: 1951-01-23
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Expires: 1969-04-19
Abstract
No abstract record available.
Inventors
- 👤 Lloyd J Hibbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:57
CPC Classifications
B; B60; B60L; B60L9/00; B60L9/02; B60L9/08; B60L9/12; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T90/00; Y02T90/10; Y02T90/16
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) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |