Patent US966196A successfully refreshed from Google Patents.
Patent US2502798A successfully refreshed from Google Patents.
US2502798A
Expired / Lapsed
US
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Fluid pressure operated clutch
Assignee: The Snow-Nabstedt Gear Corp
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Filing: 1947-03-15
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Granted: 1950-04-04
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Expires: 1967-03-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur T Nabstedt
- 👤 John O Berndtson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:44
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0632
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US848380A
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US1475020A
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DE487959C
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US2136971A
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US2289991A
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US2351867A
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US2426160A
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US2422159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |