US2855852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic coupling devices
Assignee: Borg Warner Corp
•
Filing: 1955-07-15
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Granted: 1958-10-14
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Expires: 1975-07-15
Abstract
No abstract record available.
Inventors
- 👤 David E Gamble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:59
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/28; F16H2041/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115895A
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US2140106A
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US2205054A
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US2340494A
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US2503025A
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US2588668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |