Patent US2804663A successfully refreshed from Google Patents.
US2804663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for continuous casting
Assignee: Babcock and Wilcox Co
•
Filing: 1953-06-26
•
Granted: 1957-09-03
•
Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Isaac Harter
- 👤 Temple W Ratcliffe
- 👤 Robert R Mcclain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:03
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D11/181; B22D11/182; B22D11/20; B22D11/201; B22D11/202
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE499837A
Cited
US798834A
Cited
US1503479A
Cited
US1472286A
Cited
US2246907A
Cited
GB598385A
Cited
US2568525A
Cited
US2682691A
Cited
US2586713A
Cited
US2709284A
Cited
US2753605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |