Patent US2437670A successfully refreshed from Google Patents.
US2437670A
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Fluid operated clutch
Assignee: TWIN DISE CLUTCH Co
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Filing: 1943-11-06
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Granted: 1948-03-16
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Expires: 1963-11-06
Abstract
No abstract record available.
Inventors
- 👤 Nicholas F Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:10
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1968129A
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US1968130A
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US2094065A
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US2060773A
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US2057744A
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US2123867A
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US2164844A
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US2190874A
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US2241242A
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US2282143A
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US2359516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |