Patent US3694104A successfully refreshed from Google Patents.
Patent US3030205A successfully refreshed from Google Patents.
US3030205A
Expired / Lapsed
US
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Nickel-magnesium addition alloy
Assignee: Huntington Alloys Corp
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Filing: 1959-07-20
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Granted: 1962-04-17
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Keith D Millis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:37
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/10; C21C1/105; C22; C22C; C22C19/00; C22C19/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE METHOD FOR INTRODUCING MAGNESIUM INTO MOLTENJ CAST IRON, THE IMPROVEMENT WHICH COMPRISES ESTABLISHING A COLUMN OF MOLTEN CAST IRON HAVING A HEIGHT AT LEAST SUBSTANTIALLY EXCEEDING THE THICKNESS THEREOF AND PLUNGING SUBSTANIALLY TO THE BOTTOM OF SAID COLUMN AN ADDITION AGENT CONTAING ABOUT 2K% TO 35% MGNESIUM, UP TO ABOUT 2% CARBON, UP TO ABOUT 30% SILICON, UP TO ABOUT 2% OF A RATE EARTH METAL, UP TO ABOUAT 5% CALCIUM AND THE BALANCE ESSENTIALLY NICKEL, AND HOLDING SAID AGENT SUBSTANIALLY IN POSITION IN SAID COLUMN UNTIL SAID AGENT IS SUBSTANTIALLY MELTED, WHEREBY AN IMPROVED RECOVERY IN THE MOLTEN IRON OF MAGNESIUM CONTAINED IN SAID AGENT IS OBTAINED AS COMPARED TO THE MAGNESIUM RECOVERY OB-
Claim 2
Dependent Claim
117 words
IN THE METHOD FOR INTRODUCING MAGNESIUM INTO MOLTENJ CAST IRON, THE IMPROVEMENT WHICH COMPRISES ESTABLISHING A COLUMN OF MOLTEN CAST IRON HAVING A HEIGHT AT LEAST SUBSTANTIALLY EXCEEDING THE THICKNESS THEREOF AND PLUNGING SUBSTANIALLY TO THE BOTTOM OF SAID COLUMN AN ADDITION AGENT CONTAING ABOUT 2K% TO 35% MGNESIUM, UP TO ABOUT 2% CARBON, UP TO ABOUT 30% SILICON, UP TO ABOUT 2% OF A RATE EARTH METAL, UP TO ABOUAT 5% CALCIUM AND THE BALANCE ESSENTIALLY NICKEL, AND HOLDING SAID AGENT SUBSTANIALLY IN POSITION IN SAID COLUMN UNTIL SAID AGENT IS SUBSTANTIALLY MELTED, WHEREBY AN IMPROVED RECOVERY IN THE MOLTEN IRON OF MAGNESIUM CONTAINED IN SAID AGENT IS OBTAINED AS COMPARED TO THE MAGNESIUM RECOVERY OB-
References Cited (Backward Citations)
US2485761A
Cited
US2485760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |