Patent US2417894A successfully refreshed from Google Patents.
US2417894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary diesel engine
Assignee: Individual
•
Filing: 1943-09-23
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Granted: 1947-03-25
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Expires: 1963-09-23
Abstract
No abstract record available.
Inventors
- 👤 Gienn J Wayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:42
CPC Classifications
F; F02; F02B; F02B57/00; F02B57/08; F01; F01B; F01B13/00; F01B13/04; F01B13/045; F01B13/06; F01B13/068; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1816; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915828A
Cited
US877977A
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US981995A
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US1530563A
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US1644564A
Cited
US1743107A
Cited
US1918174A
Cited
US2353065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |