Patent US2446186A successfully refreshed from Google Patents.
Patent US3921637A successfully refreshed from Google Patents.
US2948552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hitch for mobile conveyor
Assignee: Jeffrey Manufacturing Co
•
Filing: 1957-03-20
•
Granted: 1960-08-09
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Sterling C Moon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:05
CPC Classifications
B; B62; B62D; B62D13/00; B62D13/04; B60; B60P; B60P1/00; B60P1/36; B60P1/38; B65; B65G; B65G37/00; B65G2812/00; B65G2812/01; B65G2812/012; B65G2812/014; B65G2812/015
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1304276A
Cited
US1416989A
Cited
US1627998A
Cited
US2420009A
Cited
US2588283A
Cited
US2580112A
Cited
US2746771A
Cited
US2799386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |