Patent US2473638A successfully refreshed from Google Patents.
US2473638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic transmission and clutch
Assignee: EDWARD M STREICHER
•
Filing: 1944-09-14
•
Granted: 1949-06-21
•
Expires: 1964-09-14
Abstract
No abstract record available.
Inventors
- 👤 Reginald I Cumming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:50
CPC Classifications
F; F16; F16D; F16D33/00; F16D67/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR546009A
Cited
US1027616A
Cited
US1242974A
Cited
US1203265A
Cited
US1636050A
Cited
US1540453A
Cited
US1918163A
Cited
GB372983A
Cited
GB407146A
Cited
US2129884A
Cited
US2131619A
Cited
US2212774A
Cited
US2292482A
Cited
US2315130A
Cited
US2368873A
Cited
US2388062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |