US2678266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Introduction of magnesium into molten iron
Assignee: Individual
•
Filing: 1951-11-08
•
Granted: 1954-05-11
•
Expires: 1971-11-08
Abstract
No abstract record available.
Inventors
- 👤 Zifferer Lothar Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:47
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/10; C22; C22C; C22C33/00; C22C33/08; C22C33/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
THE METHOD OF INTRODUCING A FIRST METAL TO A MOLTEN MASS OF A SECOND METAL, COMPRISING: MELTING SAID FIRST METAL AT A POINT REMOTE FROM SAID MASS; CONVEYING THE MELTED FIRST METAL IN A CONDUIT TO A POINT ADJACENT SAID MOLTEN MASS OF SECOND METAL; CONTINUOUSLY APPLYING HEAT TO SAID FIRST METAL IN SAID CONDUIT TO MAINTAIN SAID MELTED CONDITION VAPORIZING SAID FIRST METAL BY APPLICATION OF ADDITIONAL HEAT OBTAINED AT LEAST IN PART FROM SAID MOLTEN MASS A SECOND METAL;
References Cited (Backward Citations)
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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) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |