Patent US4451524B1 successfully refreshed from Google Patents.
Patent US2696371A successfully refreshed from Google Patents.
US2696371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck-mounted concrete mixer
Assignee: Chain Belt Co
•
Filing: 1951-08-03
•
Granted: 1954-12-07
•
Expires: 1971-08-03
Abstract
No abstract record available.
Inventors
- 👤 John W Lendved
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:35
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4272
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE546329C
Cited
US703424A
Cited
US2013359A
Cited
US1781965A
Cited
US1872624A
Cited
US1901305A
Cited
US1919073A
Cited
US2018112A
Cited
US2538871A
Cited
US2338820A
Cited
US2487887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |