US2481433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting means for electric furnaces
Assignee: Individual
•
Filing: 1946-10-05
•
Granted: 1949-09-06
•
Expires: 1966-10-05
Abstract
No abstract record available.
Inventors
- 👤 John K Mcbroom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
F; F27; F27B; F27B14/00; F27B14/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1444584A
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US1378972A
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US1392965A
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US1751856A
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US1654419A
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US1553618A
Cited
US1972868A
Cited
US2059660A
Cited
US2202224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |