US2428658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-cooled slab mold
Assignee: American Brass Co
•
Filing: 1944-02-15
•
Granted: 1947-10-07
•
Expires: 1964-02-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Falk
- 👤 Robert S Storrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:35
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1928302A
Cited
US1988425A
Cited
US1936280A
Cited
US1973550A
Cited
DE613639C
Cited
US2120700A
Cited
US2316180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |