US3050794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace ladling apparatus
Assignee: Lindberg Engineering Co
•
Filing: 1959-09-08
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Granted: 1962-08-28
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Expires: 1979-09-08
Abstract
No abstract record available.
Inventors
- 👤 George W Holz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:26
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/14; B; B22; B22D; B22D39/00; B22D39/06; C; C21; C21C; C21C7/00; C21C7/10; F27B; F27B5/00; F27B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313895A
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FR956208A
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US853754A
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CH117003A
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US1982770A
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US2209882A
Cited
US2397512A
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US2459892A
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US2509079A
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US2676370A
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US2846740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |