US2572058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging and discharging mechanism for mixers
Assignee: Blaw Knox Co
•
Filing: 1948-09-18
•
Granted: 1951-10-23
•
Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 Louis J Sarosdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:43
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4234
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US615519A
Cited
US1766552A
Cited
US1848223A
Cited
US1827713A
Cited
US2285685A
Cited
US2316137A
Cited
US2360345A
Cited
US2501944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |