Patent US2678710A successfully refreshed from Google Patents.
US2678710A
Expired / Lapsed
US
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Gear pump type fluid clutch
Assignee: Individual
•
Filing: 1947-12-20
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Granted: 1954-05-18
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Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Sterne Alfred Baptiste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:09
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US541483A
Cited
US1307488A
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US2371227A
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US1363907A
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US1819606A
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US1882222A
Cited
GB407939A
Cited
US2209949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |