US2443597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple clutch construction with synchronizing clutches for change-speed transmission
Assignee: Borg Warner Corp
•
Filing: 1943-06-26
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Granted: 1948-06-22
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Expires: 1963-06-26
Abstract
No abstract record available.
Inventors
- 👤 Harold E Carnagua
- 👤 Clifford L Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:19
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19251; Y10T74/19256; Y10T74/19274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
SE102530C1
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US2225174A
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US2269668A
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US2286549A
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US2245017A
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US2202271A
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US2259527A
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US2258475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |