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Patent US2495992A successfully refreshed from Google Patents.
US2495992A
Expired / Lapsed
US
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Ingot mold and hot top
Assignee: Ferro Engineering Co
•
Filing: 1946-06-28
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Granted: 1950-01-31
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Expires: 1966-06-28
Abstract
No abstract record available.
Inventors
- 👤 Walter W Urmetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:21
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US385836A
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US644740A
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US1055833A
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US1417246A
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US1603662A
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US1720857A
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US1804206A
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US2190392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |