US2437483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel-electric vehicle with automatic field weakening of the driving motors
Assignee: Sulzer AG
•
Filing: 1945-03-07
•
Granted: 1948-03-09
•
Expires: 1965-03-07
Abstract
No abstract record available.
Inventors
- 👤 Schlapfer Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/10; B60L50/11; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US786376A
Cited
US1900706A
Cited
US2131527A
Cited
US2145611A
Cited
US2256294A
Cited
US2318043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |