Patent US2543853A successfully refreshed from Google Patents.
US2543853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for adding magnesium to cast iron
Assignee: JAMES JORDAN LAB
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Filing: 1950-07-03
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Granted: 1951-03-06
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Expires: 1970-07-03
Abstract
No abstract record available.
Inventors
- 👤 Jordan James Fernando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:21
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/08; C22C33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN THE PROCESS WHEREIN MAGNESIUM IS ALLOYED WITH MOLTEN CAST IRON IN THE PROPDUCTION OF NODULAR GRAPHITE CAST IRON CASTINGS. THE STEPS, WHICH COMPRISE: ADDING SUBSTANTIALLY ALL OF SAID MAGNESIUM TO SAID MOLTEN CAST IRON BY ADDING MAGNESIUM CARBIDE TO SAID MOLTEN CAST IRON: AND CASTING THE MOLTEN MAGNESIUM-BEARING CAST IRON.
Claim 2
Dependent Claim
51 words
IN THE PROCESS WHEREIN MAGNESIUM IS ALLOYED WITH MOLTEN CAST IRON IN THE PROPDUCTION OF NODULAR GRAPHITE CAST IRON CASTINGS. THE STEPS, WHICH COMPRISE: ADDING SUBSTANTIALLY ALL OF SAID MAGNESIUM TO SAID MOLTEN CAST IRON BY ADDING MAGNESIUM CARBIDE TO SAID MOLTEN CAST IRON: AND CASTING THE MOLTEN MAGNESIUM-BEARING CAST IRON.
References Cited (Backward Citations)
US2445760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |