Patent US3006554A successfully refreshed from Google Patents.
Patent US2467987A successfully refreshed from Google Patents.
US2467987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronizing clutch
Assignee: Dana Inc
•
Filing: 1945-02-03
•
Granted: 1949-04-19
•
Expires: 1965-02-03
Abstract
No abstract record available.
Inventors
- 👤 Albert H Deimel
- 👤 Edward W Zingsheim
- 👤 Marion F Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:54
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/02; F16D23/04; F16D23/06; F16D2023/0643; F16D2023/0656
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |