Patent FR1492597A successfully refreshed from Google Patents.
Patent US2674328A successfully refreshed from Google Patents.
US2674328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power propelled hand truck and control unit therefor
Assignee: Winget Ltd
•
Filing: 1949-12-28
•
Granted: 1954-04-06
•
Expires: 1969-12-28
Abstract
No abstract record available.
Inventors
- 👤 Searls Edward Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:52
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/0026; B62B3/00; B62B3/001; B62B3/08; B62D; B62D49/00; B62D49/06; B62D49/0664
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US941129A
Cited
US1210762A
Cited
US1262049A
Cited
US1928915A
Cited
GB529814A
Cited
FR884631A
Cited
US2420111A
Cited
US2477065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |