Patent US2474348A successfully refreshed from Google Patents.
US2474348A
Expired / Lapsed
US
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Variable displacement radial vane rotary motor
Assignee: Individual
•
Filing: 1944-07-28
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Granted: 1949-06-28
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Expires: 1964-07-28
Abstract
No abstract record available.
Inventors
- 👤 Severin F Czerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:45
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US485094A
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US550467A
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US872203A
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US1150478A
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US1257225A
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FR610290A
Cited
US1999288A
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US2030299A
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US2361098A
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US2318292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |