Patent US4161980A successfully refreshed from Google Patents.
Patent US3519060A successfully refreshed from Google Patents.
US3519060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous casting apparatus with a molten metal level control
Assignee: Acme Steel Co
•
Filing: 1968-02-07
•
Granted: 1970-07-07
•
Expires: 1988-02-07
Abstract
No abstract record available.
Inventors
- 👤 George Vischulis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:02
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D11/181; B22D11/186; G05; G05D; G05D9/00; G05D9/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA711067A
Cited
FR1029098A
Cited
US2905989A
Cited
AT226894B
Cited
US3204460A
Cited
FR1373146A
Cited
US3456715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |