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US2568536A
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Apparatus for filling and ramming foundry flasks
Assignee: Foundry Equipment Ltd
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Filing: 1949-03-10
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Granted: 1951-09-18
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Expires: 1969-03-10
Abstract
No abstract record available.
Inventors
- 👤 Beech Austin Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:33
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/06; B22; B22C; B22C15/00; B22C15/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US798699A
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US1329459A
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US1364831A
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US1789874A
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US2286754A
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US2092326A
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US2215559A
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US2295926A
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US2306847A
Cited
GB570641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |