US2724475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction clutch
Assignee: Dana Inc
•
Filing: 1951-08-29
•
Granted: 1955-11-22
•
Expires: 1971-08-29
Abstract
No abstract record available.
Inventors
- 👤 Thelander W Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:38
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/70; F16D13/71; F16D2013/581; F16D2013/706
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1587089A
Cited
US2171908A
Cited
US2256708A
Cited
US2277221A
Cited
US2385517A
Cited
US2485214A
Cited
US2589308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |