Patent US2982377A successfully refreshed from Google Patents.
US2982377A
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Liquid cooled frictional mechanism
Assignee: ERLING D SEDERGREN
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Filing: 1957-12-30
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Granted: 1961-05-02
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Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 James O Eames
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:11
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/80; F16D65/813
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1131810A
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US1832686A
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US2148818A
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US2127557A
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US2263961A
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US2517973A
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US2682320A
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US2821271A
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US2835357A
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US2852118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |