US2442840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque converter with friction clutch
Assignee: Borg Warner Corp
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Filing: 1942-07-09
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Granted: 1948-06-08
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Expires: 1962-07-09
Abstract
No abstract record available.
Inventors
- 👤 Harold E Carnagua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:04
CPC Classifications
F; F16; F16H; F16H45/00; F16H45/02; F16H47/00; F16H47/06; F16H47/08; F16H41/00; F16H41/24; F16H2041/246; F16H2045/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |