Patent US3080228A successfully refreshed from Google Patents.
US3080228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of cast iron
Assignee: Valeo Engine Cooling Inc
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Filing: 1960-08-03
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Granted: 1963-03-05
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Expires: 1980-08-03
Abstract
No abstract record available.
Inventors
- 👤 Everett W Hale
- 👤 Jr Harry B Laudenslager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/0037; C21C1/00; C21C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A PROCESS FOR PRODUCING A WORKABLE BASE IRON THE IMPROVEMENT WHICH COMPRISES ENTRAINING A MIXTURE OF MAGNESIUM PARTICLES, AT LEAST 50% OF WHICH ARE SPHERES IN THE SIZE RANGE 6 TO 100 MMESH INTO A GASEOUS STREAM, INJECTING SAID STREAM INTO A MOLTEN BATH OF CAST IRON AT A RATE SUFFICIENT TO MAINTAIN FREE INJECTION OF MAGNESIUM SPHERES INTO THE METAL AND CASTING SAID MOLTEN IRON.
Claim 2
Dependent Claim
67 words
IN A PROCESS FOR PRODUCING A WORKABLE BASE IRON THE IMPROVEMENT WHICH COMPRISES ENTRAINING A MIXTURE OF MAGNESIUM PARTICLES, AT LEAST 50% OF WHICH ARE SPHERES IN THE SIZE RANGE 6 TO 100 MMESH INTO A GASEOUS STREAM, INJECTING SAID STREAM INTO A MOLTEN BATH OF CAST IRON AT A RATE SUFFICIENT TO MAINTAIN FREE INJECTION OF MAGNESIUM SPHERES INTO THE METAL AND CASTING SAID MOLTEN IRON.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |