Patent US2730912A successfully refreshed from Google Patents.
US2730912A
Expired / Lapsed
US
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Sectional crankshaft
Assignee: Individual
•
Filing: 1952-05-23
•
Granted: 1956-01-17
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Expires: 1972-05-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Marinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:58
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/10; F16C3/12; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2174; Y10T74/2175; Y10T74/2185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US290565A
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US296368A
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US1363957A
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GB189823360A
Cited
US1431416A
Cited
US1845110A
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US2364109A
Cited
US2331541A
Cited
US2324373A
Cited
GB909830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |