US2784675A
Expired / Lapsed
US
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Hydrodynamic coupling
Assignee: Borg Warner Corp
•
Filing: 1952-12-22
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Granted: 1957-03-12
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Expires: 1972-12-22
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H2041/243; F16H2041/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1963675A
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US2140106A
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US2351517A
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US2417195A
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US2412024A
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US2494539A
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US2658692A
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US2672279A
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US2695131A
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US2689682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |