Patent US2726152A successfully refreshed from Google Patents.
US2726152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition agent and method for treating cast iron
Assignee: Huntington Alloys Corp
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Filing: 1953-02-11
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Granted: 1955-12-06
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Expires: 1973-02-11
Abstract
No abstract record available.
Inventors
- 👤 Eash John Trimble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:10
CPC Classifications
C; C22; C22C; C22C35/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN THE PROCESS FOR INTRODUCING MAGNESIUM INTO MOLTEN CAST IRON TO PRODUCE IRON CASTINGS CONTAINING A SMALL BUT EFFECTIVE AMOUNT OF RETAINED MAGNESIUM, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID MAGNESIUM AS A BRIQUETTED AGENT ESSENTIALLY COMPRISING ABOUT 20% TO ABOUT 40% MAGNESIUM PARTICLES HAVING A PARTICLE SIZE OF ABOUT 60 TO ABOUT 200 MESH, ABOUT 50% TO ABOUT 75% CARBON PARTICLES HAVING A PARTICLE SIZE AT LEAST AS FINE AS ABOUT 200 MESH AND ABOUT 5% TO ABOUT 15% OF A BINDER TO PROVIDE SOLIDITY IN SAID AGENT.
Claim 2
Dependent Claim
88 words
IN THE PROCESS FOR INTRODUCING MAGNESIUM INTO MOLTEN CAST IRON TO PRODUCE IRON CASTINGS CONTAINING A SMALL BUT EFFECTIVE AMOUNT OF RETAINED MAGNESIUM, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID MAGNESIUM AS A BRIQUETTED AGENT ESSENTIALLY COMPRISING ABOUT 20% TO ABOUT 40% MAGNESIUM PARTICLES HAVING A PARTICLE SIZE OF ABOUT 60 TO ABOUT 200 MESH, ABOUT 50% TO ABOUT 75% CARBON PARTICLES HAVING A PARTICLE SIZE AT LEAST AS FINE AS ABOUT 200 MESH AND ABOUT 5% TO ABOUT 15% OF A BINDER TO PROVIDE SOLIDITY IN SAID AGENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |