Patent US4327397A successfully refreshed from Google Patents.
Patent US3013789A successfully refreshed from Google Patents.
US3013789A
Expired / Lapsed
US
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Mobile apparatus for oxygen refining of metal
Assignee: MH Treadwell Co Inc
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Filing: 1959-12-17
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Granted: 1961-12-19
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Paul L Sayre
- 👤 Horace B Levey
- 👤 Robert W Dieckman
- 👤 Henderson Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:50
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR OXYGEN REFINING OF METAL COMPRISING IN COMBINATION, A TRACK, A METAL-REFINING STATION AT AN INTERMEDIATE POINT OF SAID TRACK, AND A HOT-METAL CAR CARRIED BY SAID TRACK AND MOVABLE THERALONG BETWEEN SAID STATION AND OTHER STATIONS AT DISTAL POINTS OF SAID TRACK IN OPPOSITE DIRECTIONS FROM SAID METAL-REFINING STATION, SAID CAR INCLUDING A HORIZONTAL, ELONGATE CONTAINER, ROCKABLE ABOUT A HORIZONTAL, LONGITUDINAL AXIS AND HAVING A FIRST TOP OPENING ADAPTED FOR THE INSERTION OF AN OXYGEN-CONVEYING LANCE THEREINTO AND A SECOND TOP OPENING ADAPTED FOR THE EXHAUSTION OF GASES FROM SAID CONTAINER, AND SAID METAL-REFINING STATION INCLUDING AN OXYGEN-CONVEYING LANCE ADAPTED FOR INSERTION INTO SAID FIRST TOP OPENING.
Claim 2
Dependent Claim
109 words
APPARATUS FOR OXYGEN REFINING OF METAL COMPRISING IN COMBINATION, A TRACK, A METAL-REFINING STATION AT AN INTERMEDIATE POINT OF SAID TRACK, AND A HOT-METAL CAR CARRIED BY SAID TRACK AND MOVABLE THERALONG BETWEEN SAID STATION AND OTHER STATIONS AT DISTAL POINTS OF SAID TRACK IN OPPOSITE DIRECTIONS FROM SAID METAL-REFINING STATION, SAID CAR INCLUDING A HORIZONTAL, ELONGATE CONTAINER, ROCKABLE ABOUT A HORIZONTAL, LONGITUDINAL AXIS AND HAVING A FIRST TOP OPENING ADAPTED FOR THE INSERTION OF AN OXYGEN-CONVEYING LANCE THEREINTO AND A SECOND TOP OPENING ADAPTED FOR THE EXHAUSTION OF GASES FROM SAID CONTAINER, AND SAID METAL-REFINING STATION INCLUDING AN OXYGEN-CONVEYING LANCE ADAPTED FOR INSERTION INTO SAID FIRST TOP OPENING.
References Cited (Backward Citations)
US290075A
Cited
US810301A
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US2290961A
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US2708572A
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US2851351A
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US2900249A
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US2886308A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |