Patent US3058621A successfully refreshed from Google Patents.
US3058621A
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Ladle feeding means
Assignee: Blaw Knox Co
•
Filing: 1959-09-14
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Granted: 1962-10-16
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Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Stenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0025; F27D3/0026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100878A
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US2319795A
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US2303033A
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US2544155A
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US2568332A
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US2638244A
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US2921713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |