Patent US2317070A successfully refreshed from Google Patents.
US2317070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft and hub connection
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1941-12-23
•
Granted: 1943-04-20
•
Expires: 1961-12-23
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/092; F16B; F16B2200/00; F16B2200/20; F16B2200/205; F16B2200/40; F16B2200/403; F16D1/10; F16D2001/103
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-04-19 | 1946-10-19 | 1947-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-19 | 1950-10-19 | 1951-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-19 | 1954-10-19 | 1955-04-20 | $7700.00 | Window Closed / Lapsed |