US2948226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic coupling
Assignee: Borg Warner Corp
•
Filing: 1955-05-27
•
Granted: 1960-08-09
•
Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Richard L Smirl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:43
CPC Classifications
F; F16; F16D; F16D33/00; F16D33/18; F16D33/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4933; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190504603A
Cited
US2347071A
Cited
US2304721A
Cited
US2360383A
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US2317217A
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US2365354A
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GB580119A
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US2481541A
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US2505820A
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US2438867A
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US2598620A
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US2542913A
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US2692562A
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US2660957A
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US2576682A
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US2682703A
Cited
US2696171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |