US2453400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying foundry molds
Assignee: Foundry Equipment Co
•
Filing: 1943-07-13
•
Granted: 1948-11-09
•
Expires: 1963-07-13
Abstract
No abstract record available.
Inventors
- 👤 Charles A Barnett
- 👤 Joseph M Beyvl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:16
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US526101A
Cited
US530641A
Cited
US1057905A
Cited
US1167889A
Cited
GB123769A
Cited
US1373688A
Cited
US1749448A
Cited
US1923940A
Cited
US2187161A
Cited
US2311309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |