US2433628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel-electric vehicle with automatic weakening of the fields of the driving motors
Assignee: Sulzer AG
•
Filing: 1944-09-20
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Granted: 1947-12-30
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Expires: 1964-09-20
Abstract
No abstract record available.
Inventors
- 👤 Schlapfer Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:38
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)
USRE22588E
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US786376A
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US865813A
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US1072656A
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US1282855A
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US1833017A
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US2060900A
Cited
US2131527A
Cited
US2172298A
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US2182644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |