US3191247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace ladling apparatus
Assignee: Lindberg Engineering Co
•
Filing: 1959-09-08
•
Granted: 1965-06-29
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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
2026-11-05 14:57
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/14; B; B22; B22D; B22D17/00; B22D17/20; B22D17/30; B22D39/00; B22D39/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2209882A
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US2397512A
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US2847739A
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US2937789A
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US2846740A
Cited
US3050794A
Cited
US3123877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |