US2728123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for feeding raw molten iron at a constant rate
Assignee: ABIGAIL JORDAN
•
Filing: 1953-01-22
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Granted: 1955-12-27
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Expires: 1973-01-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:51
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/04; B22D11/00; B22D11/16; B22D11/18; B22D11/181; B22D11/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2040157A
Cited
FR905660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |