US2845261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal melting furnace
Assignee: Selas Corp of America
•
Filing: 1954-11-16
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Granted: 1958-07-29
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Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 Furczyk Alfons Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:03
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/06; F27B3/065; F27B3/10; F27B3/12; F27B3/18; F27D; F27D3/00; F27D3/04; Y; Y10; Y10S; Y10S266/00; Y10S266/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US924025A
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US1092938A
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US1476106A
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US1692614A
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DE444535C
Cited
US1965928A
Cited
GB383103A
Cited
US1895726A
Cited
US2089742A
Cited
DE670110C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |