US2745352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic coupling device
Assignee: Borg Warner Corp
•
Filing: 1950-08-30
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Granted: 1956-05-15
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 Reinhold C Zeidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:22
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/28; F16D; F16D1/00; F16D1/06; F16H2041/246; F16H2041/285; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4933
Claims Analysis
Total Claims: 0
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US2542251A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |